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gtaylor/python-colormath | colormath/chromatic_adaptation.py | _get_adaptation_matrix | def _get_adaptation_matrix(wp_src, wp_dst, observer, adaptation):
"""
Calculate the correct transformation matrix based on origin and target
illuminants. The observer angle must be the same between illuminants.
See colormath.color_constants.ADAPTATION_MATRICES for a list of possible
adaptations.
Detailed conversion documentation is available at:
http://brucelindbloom.com/Eqn_ChromAdapt.html
"""
# Get the appropriate transformation matrix, [MsubA].
m_sharp = color_constants.ADAPTATION_MATRICES[adaptation]
# In case the white-points are still input as strings
# Get white-points for illuminant
if isinstance(wp_src, str):
orig_illum = wp_src.lower()
wp_src = color_constants.ILLUMINANTS[observer][orig_illum]
elif hasattr(wp_src, '__iter__'):
wp_src = wp_src
if isinstance(wp_dst, str):
targ_illum = wp_dst.lower()
wp_dst = color_constants.ILLUMINANTS[observer][targ_illum]
elif hasattr(wp_dst, '__iter__'):
wp_dst = wp_dst
# Sharpened cone responses ~ rho gamma beta ~ sharpened r g b
rgb_src = numpy.dot(m_sharp, wp_src)
rgb_dst = numpy.dot(m_sharp, wp_dst)
# Ratio of whitepoint sharpened responses
m_rat = numpy.diag(rgb_dst / rgb_src)
# Final transformation matrix
m_xfm = numpy.dot(numpy.dot(pinv(m_sharp), m_rat), m_sharp)
return m_xfm | python | def _get_adaptation_matrix(wp_src, wp_dst, observer, adaptation):
"""
Calculate the correct transformation matrix based on origin and target
illuminants. The observer angle must be the same between illuminants.
See colormath.color_constants.ADAPTATION_MATRICES for a list of possible
adaptations.
Detailed conversion documentation is available at:
http://brucelindbloom.com/Eqn_ChromAdapt.html
"""
# Get the appropriate transformation matrix, [MsubA].
m_sharp = color_constants.ADAPTATION_MATRICES[adaptation]
# In case the white-points are still input as strings
# Get white-points for illuminant
if isinstance(wp_src, str):
orig_illum = wp_src.lower()
wp_src = color_constants.ILLUMINANTS[observer][orig_illum]
elif hasattr(wp_src, '__iter__'):
wp_src = wp_src
if isinstance(wp_dst, str):
targ_illum = wp_dst.lower()
wp_dst = color_constants.ILLUMINANTS[observer][targ_illum]
elif hasattr(wp_dst, '__iter__'):
wp_dst = wp_dst
# Sharpened cone responses ~ rho gamma beta ~ sharpened r g b
rgb_src = numpy.dot(m_sharp, wp_src)
rgb_dst = numpy.dot(m_sharp, wp_dst)
# Ratio of whitepoint sharpened responses
m_rat = numpy.diag(rgb_dst / rgb_src)
# Final transformation matrix
m_xfm = numpy.dot(numpy.dot(pinv(m_sharp), m_rat), m_sharp)
return m_xfm | [
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adaptations.
Detailed conversion documentation is available at:
http://brucelindbloom.com/Eqn_ChromAdapt.html | [
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gtaylor/python-colormath | colormath/chromatic_adaptation.py | apply_chromatic_adaptation | def apply_chromatic_adaptation(val_x, val_y, val_z, orig_illum, targ_illum,
observer='2', adaptation='bradford'):
"""
Applies a chromatic adaptation matrix to convert XYZ values between
illuminants. It is important to recognize that color transformation results
in color errors, determined by how far the original illuminant is from the
target illuminant. For example, D65 to A could result in very high maximum
deviance.
An informative article with estimate average Delta E values for each
illuminant conversion may be found at:
http://brucelindbloom.com/ChromAdaptEval.html
"""
# It's silly to have to do this, but some people may want to call this
# function directly, so we'll protect them from messing up upper/lower case.
adaptation = adaptation.lower()
# Get white-points for illuminant
if isinstance(orig_illum, str):
orig_illum = orig_illum.lower()
wp_src = color_constants.ILLUMINANTS[observer][orig_illum]
elif hasattr(orig_illum, '__iter__'):
wp_src = orig_illum
if isinstance(targ_illum, str):
targ_illum = targ_illum.lower()
wp_dst = color_constants.ILLUMINANTS[observer][targ_illum]
elif hasattr(targ_illum, '__iter__'):
wp_dst = targ_illum
logger.debug(" \* Applying adaptation matrix: %s", adaptation)
# Retrieve the appropriate transformation matrix from the constants.
transform_matrix = _get_adaptation_matrix(wp_src, wp_dst,
observer, adaptation)
# Stuff the XYZ values into a NumPy matrix for conversion.
XYZ_matrix = numpy.array((val_x, val_y, val_z))
# Perform the adaptation via matrix multiplication.
result_matrix = numpy.dot(transform_matrix, XYZ_matrix)
# Return individual X, Y, and Z coordinates.
return result_matrix[0], result_matrix[1], result_matrix[2] | python | def apply_chromatic_adaptation(val_x, val_y, val_z, orig_illum, targ_illum,
observer='2', adaptation='bradford'):
"""
Applies a chromatic adaptation matrix to convert XYZ values between
illuminants. It is important to recognize that color transformation results
in color errors, determined by how far the original illuminant is from the
target illuminant. For example, D65 to A could result in very high maximum
deviance.
An informative article with estimate average Delta E values for each
illuminant conversion may be found at:
http://brucelindbloom.com/ChromAdaptEval.html
"""
# It's silly to have to do this, but some people may want to call this
# function directly, so we'll protect them from messing up upper/lower case.
adaptation = adaptation.lower()
# Get white-points for illuminant
if isinstance(orig_illum, str):
orig_illum = orig_illum.lower()
wp_src = color_constants.ILLUMINANTS[observer][orig_illum]
elif hasattr(orig_illum, '__iter__'):
wp_src = orig_illum
if isinstance(targ_illum, str):
targ_illum = targ_illum.lower()
wp_dst = color_constants.ILLUMINANTS[observer][targ_illum]
elif hasattr(targ_illum, '__iter__'):
wp_dst = targ_illum
logger.debug(" \* Applying adaptation matrix: %s", adaptation)
# Retrieve the appropriate transformation matrix from the constants.
transform_matrix = _get_adaptation_matrix(wp_src, wp_dst,
observer, adaptation)
# Stuff the XYZ values into a NumPy matrix for conversion.
XYZ_matrix = numpy.array((val_x, val_y, val_z))
# Perform the adaptation via matrix multiplication.
result_matrix = numpy.dot(transform_matrix, XYZ_matrix)
# Return individual X, Y, and Z coordinates.
return result_matrix[0], result_matrix[1], result_matrix[2] | [
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target illuminant. For example, D65 to A could result in very high maximum
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An informative article with estimate average Delta E values for each
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gtaylor/python-colormath | colormath/chromatic_adaptation.py | apply_chromatic_adaptation_on_color | def apply_chromatic_adaptation_on_color(color, targ_illum, adaptation='bradford'):
"""
Convenience function to apply an adaptation directly to a Color object.
"""
xyz_x = color.xyz_x
xyz_y = color.xyz_y
xyz_z = color.xyz_z
orig_illum = color.illuminant
targ_illum = targ_illum.lower()
observer = color.observer
adaptation = adaptation.lower()
# Return individual X, Y, and Z coordinates.
color.xyz_x, color.xyz_y, color.xyz_z = apply_chromatic_adaptation(
xyz_x, xyz_y, xyz_z, orig_illum, targ_illum,
observer=observer, adaptation=adaptation)
color.set_illuminant(targ_illum)
return color | python | def apply_chromatic_adaptation_on_color(color, targ_illum, adaptation='bradford'):
"""
Convenience function to apply an adaptation directly to a Color object.
"""
xyz_x = color.xyz_x
xyz_y = color.xyz_y
xyz_z = color.xyz_z
orig_illum = color.illuminant
targ_illum = targ_illum.lower()
observer = color.observer
adaptation = adaptation.lower()
# Return individual X, Y, and Z coordinates.
color.xyz_x, color.xyz_y, color.xyz_z = apply_chromatic_adaptation(
xyz_x, xyz_y, xyz_z, orig_illum, targ_illum,
observer=observer, adaptation=adaptation)
color.set_illuminant(targ_illum)
return color | [
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gtaylor/python-colormath | examples/conversions.py | example_lab_to_xyz | def example_lab_to_xyz():
"""
This function shows a simple conversion of an Lab color to an XYZ color.
"""
print("=== Simple Example: Lab->XYZ ===")
# Instantiate an Lab color object with the given values.
lab = LabColor(0.903, 16.296, -2.22)
# Show a string representation.
print(lab)
# Convert to XYZ.
xyz = convert_color(lab, XYZColor)
print(xyz)
print("=== End Example ===\n") | python | def example_lab_to_xyz():
"""
This function shows a simple conversion of an Lab color to an XYZ color.
"""
print("=== Simple Example: Lab->XYZ ===")
# Instantiate an Lab color object with the given values.
lab = LabColor(0.903, 16.296, -2.22)
# Show a string representation.
print(lab)
# Convert to XYZ.
xyz = convert_color(lab, XYZColor)
print(xyz)
print("=== End Example ===\n") | [
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gtaylor/python-colormath | examples/conversions.py | example_lchab_to_lchuv | def example_lchab_to_lchuv():
"""
This function shows very complex chain of conversions in action.
LCHab to LCHuv involves four different calculations, making this the
conversion requiring the most steps.
"""
print("=== Complex Example: LCHab->LCHuv ===")
# Instantiate an LCHab color object with the given values.
lchab = LCHabColor(0.903, 16.447, 352.252)
# Show a string representation.
print(lchab)
# Convert to LCHuv.
lchuv = convert_color(lchab, LCHuvColor)
print(lchuv)
print("=== End Example ===\n") | python | def example_lchab_to_lchuv():
"""
This function shows very complex chain of conversions in action.
LCHab to LCHuv involves four different calculations, making this the
conversion requiring the most steps.
"""
print("=== Complex Example: LCHab->LCHuv ===")
# Instantiate an LCHab color object with the given values.
lchab = LCHabColor(0.903, 16.447, 352.252)
# Show a string representation.
print(lchab)
# Convert to LCHuv.
lchuv = convert_color(lchab, LCHuvColor)
print(lchuv)
print("=== End Example ===\n") | [
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gtaylor/python-colormath | examples/conversions.py | example_lab_to_rgb | def example_lab_to_rgb():
"""
Conversions to RGB are a little more complex mathematically. There are also
several kinds of RGB color spaces. When converting from a device-independent
color space to RGB, sRGB is assumed unless otherwise specified with the
target_rgb keyword arg.
"""
print("=== RGB Example: Lab->RGB ===")
# Instantiate an Lab color object with the given values.
lab = LabColor(0.903, 16.296, -2.217)
# Show a string representation.
print(lab)
# Convert to XYZ.
rgb = convert_color(lab, sRGBColor)
print(rgb)
print("=== End Example ===\n") | python | def example_lab_to_rgb():
"""
Conversions to RGB are a little more complex mathematically. There are also
several kinds of RGB color spaces. When converting from a device-independent
color space to RGB, sRGB is assumed unless otherwise specified with the
target_rgb keyword arg.
"""
print("=== RGB Example: Lab->RGB ===")
# Instantiate an Lab color object with the given values.
lab = LabColor(0.903, 16.296, -2.217)
# Show a string representation.
print(lab)
# Convert to XYZ.
rgb = convert_color(lab, sRGBColor)
print(rgb)
print("=== End Example ===\n") | [
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] | Conversions to RGB are a little more complex mathematically. There are also
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color space to RGB, sRGB is assumed unless otherwise specified with the
target_rgb keyword arg. | [
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gtaylor/python-colormath | examples/conversions.py | example_rgb_to_xyz | def example_rgb_to_xyz():
"""
The reverse is similar.
"""
print("=== RGB Example: RGB->XYZ ===")
# Instantiate an Lab color object with the given values.
rgb = sRGBColor(120, 130, 140)
# Show a string representation.
print(rgb)
# Convert RGB to XYZ using a D50 illuminant.
xyz = convert_color(rgb, XYZColor, target_illuminant='D50')
print(xyz)
print("=== End Example ===\n") | python | def example_rgb_to_xyz():
"""
The reverse is similar.
"""
print("=== RGB Example: RGB->XYZ ===")
# Instantiate an Lab color object with the given values.
rgb = sRGBColor(120, 130, 140)
# Show a string representation.
print(rgb)
# Convert RGB to XYZ using a D50 illuminant.
xyz = convert_color(rgb, XYZColor, target_illuminant='D50')
print(xyz)
print("=== End Example ===\n") | [
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gtaylor/python-colormath | examples/conversions.py | example_spectral_to_xyz | def example_spectral_to_xyz():
"""
Instantiate an Lab color object with the given values. Note that the
spectral range can run from 340nm to 830nm. Any omitted values assume a
value of 0.0, which is more or less ignored. For the distribution below,
we are providing an example reading from an X-Rite i1 Pro, which only
measures between 380nm and 730nm.
"""
print("=== Example: Spectral->XYZ ===")
spc = SpectralColor(
observer='2', illuminant='d50',
spec_380nm=0.0600, spec_390nm=0.0600, spec_400nm=0.0641,
spec_410nm=0.0654, spec_420nm=0.0645, spec_430nm=0.0605,
spec_440nm=0.0562, spec_450nm=0.0543, spec_460nm=0.0537,
spec_470nm=0.0541, spec_480nm=0.0559, spec_490nm=0.0603,
spec_500nm=0.0651, spec_510nm=0.0680, spec_520nm=0.0705,
spec_530nm=0.0736, spec_540nm=0.0772, spec_550nm=0.0809,
spec_560nm=0.0870, spec_570nm=0.0990, spec_580nm=0.1128,
spec_590nm=0.1251, spec_600nm=0.1360, spec_610nm=0.1439,
spec_620nm=0.1511, spec_630nm=0.1590, spec_640nm=0.1688,
spec_650nm=0.1828, spec_660nm=0.1996, spec_670nm=0.2187,
spec_680nm=0.2397, spec_690nm=0.2618, spec_700nm=0.2852,
spec_710nm=0.2500, spec_720nm=0.2400, spec_730nm=0.2300)
xyz = convert_color(spc, XYZColor)
print(xyz)
print("=== End Example ===\n") | python | def example_spectral_to_xyz():
"""
Instantiate an Lab color object with the given values. Note that the
spectral range can run from 340nm to 830nm. Any omitted values assume a
value of 0.0, which is more or less ignored. For the distribution below,
we are providing an example reading from an X-Rite i1 Pro, which only
measures between 380nm and 730nm.
"""
print("=== Example: Spectral->XYZ ===")
spc = SpectralColor(
observer='2', illuminant='d50',
spec_380nm=0.0600, spec_390nm=0.0600, spec_400nm=0.0641,
spec_410nm=0.0654, spec_420nm=0.0645, spec_430nm=0.0605,
spec_440nm=0.0562, spec_450nm=0.0543, spec_460nm=0.0537,
spec_470nm=0.0541, spec_480nm=0.0559, spec_490nm=0.0603,
spec_500nm=0.0651, spec_510nm=0.0680, spec_520nm=0.0705,
spec_530nm=0.0736, spec_540nm=0.0772, spec_550nm=0.0809,
spec_560nm=0.0870, spec_570nm=0.0990, spec_580nm=0.1128,
spec_590nm=0.1251, spec_600nm=0.1360, spec_610nm=0.1439,
spec_620nm=0.1511, spec_630nm=0.1590, spec_640nm=0.1688,
spec_650nm=0.1828, spec_660nm=0.1996, spec_670nm=0.2187,
spec_680nm=0.2397, spec_690nm=0.2618, spec_700nm=0.2852,
spec_710nm=0.2500, spec_720nm=0.2400, spec_730nm=0.2300)
xyz = convert_color(spc, XYZColor)
print(xyz)
print("=== End Example ===\n") | [
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gtaylor/python-colormath | examples/conversions.py | example_lab_to_ipt | def example_lab_to_ipt():
"""
This function shows a simple conversion of an XYZ color to an IPT color.
"""
print("=== Simple Example: XYZ->IPT ===")
# Instantiate an XYZ color object with the given values.
xyz = XYZColor(0.5, 0.5, 0.5, illuminant='d65')
# Show a string representation.
print(xyz)
# Convert to IPT.
ipt = convert_color(xyz, IPTColor)
print(ipt)
print("=== End Example ===\n") | python | def example_lab_to_ipt():
"""
This function shows a simple conversion of an XYZ color to an IPT color.
"""
print("=== Simple Example: XYZ->IPT ===")
# Instantiate an XYZ color object with the given values.
xyz = XYZColor(0.5, 0.5, 0.5, illuminant='d65')
# Show a string representation.
print(xyz)
# Convert to IPT.
ipt = convert_color(xyz, IPTColor)
print(ipt)
print("=== End Example ===\n") | [
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gtaylor/python-colormath | colormath/color_conversions.py | apply_RGB_matrix | def apply_RGB_matrix(var1, var2, var3, rgb_type, convtype="xyz_to_rgb"):
"""
Applies an RGB working matrix to convert from XYZ to RGB.
The arguments are tersely named var1, var2, and var3 to allow for the
passing of XYZ _or_ RGB values. var1 is X for XYZ, and R for RGB. var2 and
var3 follow suite.
"""
convtype = convtype.lower()
# Retrieve the appropriate transformation matrix from the constants.
rgb_matrix = rgb_type.conversion_matrices[convtype]
logger.debug(" \* Applying RGB conversion matrix: %s->%s",
rgb_type.__class__.__name__, convtype)
# Stuff the RGB/XYZ values into a NumPy matrix for conversion.
var_matrix = numpy.array((
var1, var2, var3
))
# Perform the adaptation via matrix multiplication.
result_matrix = numpy.dot(rgb_matrix, var_matrix)
rgb_r, rgb_g, rgb_b = result_matrix
# Clamp these values to a valid range.
rgb_r = max(rgb_r, 0.0)
rgb_g = max(rgb_g, 0.0)
rgb_b = max(rgb_b, 0.0)
return rgb_r, rgb_g, rgb_b | python | def apply_RGB_matrix(var1, var2, var3, rgb_type, convtype="xyz_to_rgb"):
"""
Applies an RGB working matrix to convert from XYZ to RGB.
The arguments are tersely named var1, var2, and var3 to allow for the
passing of XYZ _or_ RGB values. var1 is X for XYZ, and R for RGB. var2 and
var3 follow suite.
"""
convtype = convtype.lower()
# Retrieve the appropriate transformation matrix from the constants.
rgb_matrix = rgb_type.conversion_matrices[convtype]
logger.debug(" \* Applying RGB conversion matrix: %s->%s",
rgb_type.__class__.__name__, convtype)
# Stuff the RGB/XYZ values into a NumPy matrix for conversion.
var_matrix = numpy.array((
var1, var2, var3
))
# Perform the adaptation via matrix multiplication.
result_matrix = numpy.dot(rgb_matrix, var_matrix)
rgb_r, rgb_g, rgb_b = result_matrix
# Clamp these values to a valid range.
rgb_r = max(rgb_r, 0.0)
rgb_g = max(rgb_g, 0.0)
rgb_b = max(rgb_b, 0.0)
return rgb_r, rgb_g, rgb_b | [
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gtaylor/python-colormath | colormath/color_conversions.py | color_conversion_function | def color_conversion_function(start_type, target_type):
"""
Decorator to indicate a function that performs a conversion from one color
space to another.
This decorator will return the original function unmodified, however it will
be registered in the _conversion_manager so it can be used to perform color
space transformations between color spaces that do not have direct
conversion functions (e.g., Luv to CMYK).
Note: For a conversion to/from RGB supply the BaseRGBColor class.
:param start_type: Starting color space type
:param target_type: Target color space type
"""
def decorator(f):
f.start_type = start_type
f.target_type = target_type
_conversion_manager.add_type_conversion(start_type, target_type, f)
return f
return decorator | python | def color_conversion_function(start_type, target_type):
"""
Decorator to indicate a function that performs a conversion from one color
space to another.
This decorator will return the original function unmodified, however it will
be registered in the _conversion_manager so it can be used to perform color
space transformations between color spaces that do not have direct
conversion functions (e.g., Luv to CMYK).
Note: For a conversion to/from RGB supply the BaseRGBColor class.
:param start_type: Starting color space type
:param target_type: Target color space type
"""
def decorator(f):
f.start_type = start_type
f.target_type = target_type
_conversion_manager.add_type_conversion(start_type, target_type, f)
return f
return decorator | [
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gtaylor/python-colormath | colormath/color_conversions.py | Spectral_to_XYZ | def Spectral_to_XYZ(cobj, illuminant_override=None, *args, **kwargs):
"""
Converts spectral readings to XYZ.
"""
# If the user provides an illuminant_override numpy array, use it.
if illuminant_override:
reference_illum = illuminant_override
else:
# Otherwise, look up the illuminant from known standards based
# on the value of 'illuminant' pulled from the SpectralColor object.
try:
reference_illum = spectral_constants.REF_ILLUM_TABLE[cobj.illuminant]
except KeyError:
raise InvalidIlluminantError(cobj.illuminant)
# Get the spectral distribution of the selected standard observer.
if cobj.observer == '10':
std_obs_x = spectral_constants.STDOBSERV_X10
std_obs_y = spectral_constants.STDOBSERV_Y10
std_obs_z = spectral_constants.STDOBSERV_Z10
else:
# Assume 2 degree, since it is theoretically the only other possibility.
std_obs_x = spectral_constants.STDOBSERV_X2
std_obs_y = spectral_constants.STDOBSERV_Y2
std_obs_z = spectral_constants.STDOBSERV_Z2
# This is a NumPy array containing the spectral distribution of the color.
sample = cobj.get_numpy_array()
# The denominator is constant throughout the entire calculation for X,
# Y, and Z coordinates. Calculate it once and re-use.
denom = std_obs_y * reference_illum
# This is also a common element in the calculation whereby the sample
# NumPy array is multiplied by the reference illuminant's power distribution
# (which is also a NumPy array).
sample_by_ref_illum = sample * reference_illum
# Calculate the numerator of the equation to find X.
x_numerator = sample_by_ref_illum * std_obs_x
y_numerator = sample_by_ref_illum * std_obs_y
z_numerator = sample_by_ref_illum * std_obs_z
xyz_x = x_numerator.sum() / denom.sum()
xyz_y = y_numerator.sum() / denom.sum()
xyz_z = z_numerator.sum() / denom.sum()
return XYZColor(
xyz_x, xyz_y, xyz_z, observer=cobj.observer, illuminant=cobj.illuminant) | python | def Spectral_to_XYZ(cobj, illuminant_override=None, *args, **kwargs):
"""
Converts spectral readings to XYZ.
"""
# If the user provides an illuminant_override numpy array, use it.
if illuminant_override:
reference_illum = illuminant_override
else:
# Otherwise, look up the illuminant from known standards based
# on the value of 'illuminant' pulled from the SpectralColor object.
try:
reference_illum = spectral_constants.REF_ILLUM_TABLE[cobj.illuminant]
except KeyError:
raise InvalidIlluminantError(cobj.illuminant)
# Get the spectral distribution of the selected standard observer.
if cobj.observer == '10':
std_obs_x = spectral_constants.STDOBSERV_X10
std_obs_y = spectral_constants.STDOBSERV_Y10
std_obs_z = spectral_constants.STDOBSERV_Z10
else:
# Assume 2 degree, since it is theoretically the only other possibility.
std_obs_x = spectral_constants.STDOBSERV_X2
std_obs_y = spectral_constants.STDOBSERV_Y2
std_obs_z = spectral_constants.STDOBSERV_Z2
# This is a NumPy array containing the spectral distribution of the color.
sample = cobj.get_numpy_array()
# The denominator is constant throughout the entire calculation for X,
# Y, and Z coordinates. Calculate it once and re-use.
denom = std_obs_y * reference_illum
# This is also a common element in the calculation whereby the sample
# NumPy array is multiplied by the reference illuminant's power distribution
# (which is also a NumPy array).
sample_by_ref_illum = sample * reference_illum
# Calculate the numerator of the equation to find X.
x_numerator = sample_by_ref_illum * std_obs_x
y_numerator = sample_by_ref_illum * std_obs_y
z_numerator = sample_by_ref_illum * std_obs_z
xyz_x = x_numerator.sum() / denom.sum()
xyz_y = y_numerator.sum() / denom.sum()
xyz_z = z_numerator.sum() / denom.sum()
return XYZColor(
xyz_x, xyz_y, xyz_z, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | Lab_to_LCHab | def Lab_to_LCHab(cobj, *args, **kwargs):
"""
Convert from CIE Lab to LCH(ab).
"""
lch_l = cobj.lab_l
lch_c = math.sqrt(
math.pow(float(cobj.lab_a), 2) + math.pow(float(cobj.lab_b), 2))
lch_h = math.atan2(float(cobj.lab_b), float(cobj.lab_a))
if lch_h > 0:
lch_h = (lch_h / math.pi) * 180
else:
lch_h = 360 - (math.fabs(lch_h) / math.pi) * 180
return LCHabColor(
lch_l, lch_c, lch_h, observer=cobj.observer, illuminant=cobj.illuminant) | python | def Lab_to_LCHab(cobj, *args, **kwargs):
"""
Convert from CIE Lab to LCH(ab).
"""
lch_l = cobj.lab_l
lch_c = math.sqrt(
math.pow(float(cobj.lab_a), 2) + math.pow(float(cobj.lab_b), 2))
lch_h = math.atan2(float(cobj.lab_b), float(cobj.lab_a))
if lch_h > 0:
lch_h = (lch_h / math.pi) * 180
else:
lch_h = 360 - (math.fabs(lch_h) / math.pi) * 180
return LCHabColor(
lch_l, lch_c, lch_h, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | Lab_to_XYZ | def Lab_to_XYZ(cobj, *args, **kwargs):
"""
Convert from Lab to XYZ
"""
illum = cobj.get_illuminant_xyz()
xyz_y = (cobj.lab_l + 16.0) / 116.0
xyz_x = cobj.lab_a / 500.0 + xyz_y
xyz_z = xyz_y - cobj.lab_b / 200.0
if math.pow(xyz_y, 3) > color_constants.CIE_E:
xyz_y = math.pow(xyz_y, 3)
else:
xyz_y = (xyz_y - 16.0 / 116.0) / 7.787
if math.pow(xyz_x, 3) > color_constants.CIE_E:
xyz_x = math.pow(xyz_x, 3)
else:
xyz_x = (xyz_x - 16.0 / 116.0) / 7.787
if math.pow(xyz_z, 3) > color_constants.CIE_E:
xyz_z = math.pow(xyz_z, 3)
else:
xyz_z = (xyz_z - 16.0 / 116.0) / 7.787
xyz_x = (illum["X"] * xyz_x)
xyz_y = (illum["Y"] * xyz_y)
xyz_z = (illum["Z"] * xyz_z)
return XYZColor(
xyz_x, xyz_y, xyz_z, observer=cobj.observer, illuminant=cobj.illuminant) | python | def Lab_to_XYZ(cobj, *args, **kwargs):
"""
Convert from Lab to XYZ
"""
illum = cobj.get_illuminant_xyz()
xyz_y = (cobj.lab_l + 16.0) / 116.0
xyz_x = cobj.lab_a / 500.0 + xyz_y
xyz_z = xyz_y - cobj.lab_b / 200.0
if math.pow(xyz_y, 3) > color_constants.CIE_E:
xyz_y = math.pow(xyz_y, 3)
else:
xyz_y = (xyz_y - 16.0 / 116.0) / 7.787
if math.pow(xyz_x, 3) > color_constants.CIE_E:
xyz_x = math.pow(xyz_x, 3)
else:
xyz_x = (xyz_x - 16.0 / 116.0) / 7.787
if math.pow(xyz_z, 3) > color_constants.CIE_E:
xyz_z = math.pow(xyz_z, 3)
else:
xyz_z = (xyz_z - 16.0 / 116.0) / 7.787
xyz_x = (illum["X"] * xyz_x)
xyz_y = (illum["Y"] * xyz_y)
xyz_z = (illum["Z"] * xyz_z)
return XYZColor(
xyz_x, xyz_y, xyz_z, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | Luv_to_LCHuv | def Luv_to_LCHuv(cobj, *args, **kwargs):
"""
Convert from CIE Luv to LCH(uv).
"""
lch_l = cobj.luv_l
lch_c = math.sqrt(math.pow(cobj.luv_u, 2.0) + math.pow(cobj.luv_v, 2.0))
lch_h = math.atan2(float(cobj.luv_v), float(cobj.luv_u))
if lch_h > 0:
lch_h = (lch_h / math.pi) * 180
else:
lch_h = 360 - (math.fabs(lch_h) / math.pi) * 180
return LCHuvColor(
lch_l, lch_c, lch_h, observer=cobj.observer, illuminant=cobj.illuminant) | python | def Luv_to_LCHuv(cobj, *args, **kwargs):
"""
Convert from CIE Luv to LCH(uv).
"""
lch_l = cobj.luv_l
lch_c = math.sqrt(math.pow(cobj.luv_u, 2.0) + math.pow(cobj.luv_v, 2.0))
lch_h = math.atan2(float(cobj.luv_v), float(cobj.luv_u))
if lch_h > 0:
lch_h = (lch_h / math.pi) * 180
else:
lch_h = 360 - (math.fabs(lch_h) / math.pi) * 180
return LCHuvColor(
lch_l, lch_c, lch_h, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | Luv_to_XYZ | def Luv_to_XYZ(cobj, *args, **kwargs):
"""
Convert from Luv to XYZ.
"""
illum = cobj.get_illuminant_xyz()
# Without Light, there is no color. Short-circuit this and avoid some
# zero division errors in the var_a_frac calculation.
if cobj.luv_l <= 0.0:
xyz_x = 0.0
xyz_y = 0.0
xyz_z = 0.0
return XYZColor(
xyz_x, xyz_y, xyz_z,
observer=cobj.observer, illuminant=cobj.illuminant)
# Various variables used throughout the conversion.
cie_k_times_e = color_constants.CIE_K * color_constants.CIE_E
u_sub_0 = (4.0 * illum["X"]) / (illum["X"] + 15.0 * illum["Y"] + 3.0 * illum["Z"])
v_sub_0 = (9.0 * illum["Y"]) / (illum["X"] + 15.0 * illum["Y"] + 3.0 * illum["Z"])
var_u = cobj.luv_u / (13.0 * cobj.luv_l) + u_sub_0
var_v = cobj.luv_v / (13.0 * cobj.luv_l) + v_sub_0
# Y-coordinate calculations.
if cobj.luv_l > cie_k_times_e:
xyz_y = math.pow((cobj.luv_l + 16.0) / 116.0, 3.0)
else:
xyz_y = cobj.luv_l / color_constants.CIE_K
# X-coordinate calculation.
xyz_x = xyz_y * 9.0 * var_u / (4.0 * var_v)
# Z-coordinate calculation.
xyz_z = xyz_y * (12.0 - 3.0 * var_u - 20.0 * var_v) / (4.0 * var_v)
return XYZColor(
xyz_x, xyz_y, xyz_z, illuminant=cobj.illuminant, observer=cobj.observer) | python | def Luv_to_XYZ(cobj, *args, **kwargs):
"""
Convert from Luv to XYZ.
"""
illum = cobj.get_illuminant_xyz()
# Without Light, there is no color. Short-circuit this and avoid some
# zero division errors in the var_a_frac calculation.
if cobj.luv_l <= 0.0:
xyz_x = 0.0
xyz_y = 0.0
xyz_z = 0.0
return XYZColor(
xyz_x, xyz_y, xyz_z,
observer=cobj.observer, illuminant=cobj.illuminant)
# Various variables used throughout the conversion.
cie_k_times_e = color_constants.CIE_K * color_constants.CIE_E
u_sub_0 = (4.0 * illum["X"]) / (illum["X"] + 15.0 * illum["Y"] + 3.0 * illum["Z"])
v_sub_0 = (9.0 * illum["Y"]) / (illum["X"] + 15.0 * illum["Y"] + 3.0 * illum["Z"])
var_u = cobj.luv_u / (13.0 * cobj.luv_l) + u_sub_0
var_v = cobj.luv_v / (13.0 * cobj.luv_l) + v_sub_0
# Y-coordinate calculations.
if cobj.luv_l > cie_k_times_e:
xyz_y = math.pow((cobj.luv_l + 16.0) / 116.0, 3.0)
else:
xyz_y = cobj.luv_l / color_constants.CIE_K
# X-coordinate calculation.
xyz_x = xyz_y * 9.0 * var_u / (4.0 * var_v)
# Z-coordinate calculation.
xyz_z = xyz_y * (12.0 - 3.0 * var_u - 20.0 * var_v) / (4.0 * var_v)
return XYZColor(
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gtaylor/python-colormath | colormath/color_conversions.py | LCHab_to_Lab | def LCHab_to_Lab(cobj, *args, **kwargs):
"""
Convert from LCH(ab) to Lab.
"""
lab_l = cobj.lch_l
lab_a = math.cos(math.radians(cobj.lch_h)) * cobj.lch_c
lab_b = math.sin(math.radians(cobj.lch_h)) * cobj.lch_c
return LabColor(
lab_l, lab_a, lab_b, illuminant=cobj.illuminant, observer=cobj.observer) | python | def LCHab_to_Lab(cobj, *args, **kwargs):
"""
Convert from LCH(ab) to Lab.
"""
lab_l = cobj.lch_l
lab_a = math.cos(math.radians(cobj.lch_h)) * cobj.lch_c
lab_b = math.sin(math.radians(cobj.lch_h)) * cobj.lch_c
return LabColor(
lab_l, lab_a, lab_b, illuminant=cobj.illuminant, observer=cobj.observer) | [
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gtaylor/python-colormath | colormath/color_conversions.py | LCHuv_to_Luv | def LCHuv_to_Luv(cobj, *args, **kwargs):
"""
Convert from LCH(uv) to Luv.
"""
luv_l = cobj.lch_l
luv_u = math.cos(math.radians(cobj.lch_h)) * cobj.lch_c
luv_v = math.sin(math.radians(cobj.lch_h)) * cobj.lch_c
return LuvColor(
luv_l, luv_u, luv_v, illuminant=cobj.illuminant, observer=cobj.observer) | python | def LCHuv_to_Luv(cobj, *args, **kwargs):
"""
Convert from LCH(uv) to Luv.
"""
luv_l = cobj.lch_l
luv_u = math.cos(math.radians(cobj.lch_h)) * cobj.lch_c
luv_v = math.sin(math.radians(cobj.lch_h)) * cobj.lch_c
return LuvColor(
luv_l, luv_u, luv_v, illuminant=cobj.illuminant, observer=cobj.observer) | [
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gtaylor/python-colormath | colormath/color_conversions.py | xyY_to_XYZ | def xyY_to_XYZ(cobj, *args, **kwargs):
"""
Convert from xyY to XYZ.
"""
# avoid division by zero
if cobj.xyy_y == 0.0:
xyz_x = 0.0
xyz_y = 0.0
xyz_z = 0.0
else:
xyz_x = (cobj.xyy_x * cobj.xyy_Y) / cobj.xyy_y
xyz_y = cobj.xyy_Y
xyz_z = ((1.0 - cobj.xyy_x - cobj.xyy_y) * xyz_y) / cobj.xyy_y
return XYZColor(
xyz_x, xyz_y, xyz_z, illuminant=cobj.illuminant, observer=cobj.observer) | python | def xyY_to_XYZ(cobj, *args, **kwargs):
"""
Convert from xyY to XYZ.
"""
# avoid division by zero
if cobj.xyy_y == 0.0:
xyz_x = 0.0
xyz_y = 0.0
xyz_z = 0.0
else:
xyz_x = (cobj.xyy_x * cobj.xyy_Y) / cobj.xyy_y
xyz_y = cobj.xyy_Y
xyz_z = ((1.0 - cobj.xyy_x - cobj.xyy_y) * xyz_y) / cobj.xyy_y
return XYZColor(
xyz_x, xyz_y, xyz_z, illuminant=cobj.illuminant, observer=cobj.observer) | [
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gtaylor/python-colormath | colormath/color_conversions.py | XYZ_to_xyY | def XYZ_to_xyY(cobj, *args, **kwargs):
"""
Convert from XYZ to xyY.
"""
xyz_sum = cobj.xyz_x + cobj.xyz_y + cobj.xyz_z
# avoid division by zero
if xyz_sum == 0.0:
xyy_x = 0.0
xyy_y = 0.0
else:
xyy_x = cobj.xyz_x / xyz_sum
xyy_y = cobj.xyz_y / xyz_sum
xyy_Y = cobj.xyz_y
return xyYColor(
xyy_x, xyy_y, xyy_Y, observer=cobj.observer, illuminant=cobj.illuminant) | python | def XYZ_to_xyY(cobj, *args, **kwargs):
"""
Convert from XYZ to xyY.
"""
xyz_sum = cobj.xyz_x + cobj.xyz_y + cobj.xyz_z
# avoid division by zero
if xyz_sum == 0.0:
xyy_x = 0.0
xyy_y = 0.0
else:
xyy_x = cobj.xyz_x / xyz_sum
xyy_y = cobj.xyz_y / xyz_sum
xyy_Y = cobj.xyz_y
return xyYColor(
xyy_x, xyy_y, xyy_Y, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | XYZ_to_Luv | def XYZ_to_Luv(cobj, *args, **kwargs):
"""
Convert from XYZ to Luv
"""
temp_x = cobj.xyz_x
temp_y = cobj.xyz_y
temp_z = cobj.xyz_z
denom = temp_x + (15.0 * temp_y) + (3.0 * temp_z)
# avoid division by zero
if denom == 0.0:
luv_u = 0.0
luv_v = 0.0
else:
luv_u = (4.0 * temp_x) / denom
luv_v = (9.0 * temp_y) / denom
illum = cobj.get_illuminant_xyz()
temp_y = temp_y / illum["Y"]
if temp_y > color_constants.CIE_E:
temp_y = math.pow(temp_y, (1.0 / 3.0))
else:
temp_y = (7.787 * temp_y) + (16.0 / 116.0)
ref_U = (4.0 * illum["X"]) / (illum["X"] + (15.0 * illum["Y"]) + (3.0 * illum["Z"]))
ref_V = (9.0 * illum["Y"]) / (illum["X"] + (15.0 * illum["Y"]) + (3.0 * illum["Z"]))
luv_l = (116.0 * temp_y) - 16.0
luv_u = 13.0 * luv_l * (luv_u - ref_U)
luv_v = 13.0 * luv_l * (luv_v - ref_V)
return LuvColor(
luv_l, luv_u, luv_v, observer=cobj.observer, illuminant=cobj.illuminant) | python | def XYZ_to_Luv(cobj, *args, **kwargs):
"""
Convert from XYZ to Luv
"""
temp_x = cobj.xyz_x
temp_y = cobj.xyz_y
temp_z = cobj.xyz_z
denom = temp_x + (15.0 * temp_y) + (3.0 * temp_z)
# avoid division by zero
if denom == 0.0:
luv_u = 0.0
luv_v = 0.0
else:
luv_u = (4.0 * temp_x) / denom
luv_v = (9.0 * temp_y) / denom
illum = cobj.get_illuminant_xyz()
temp_y = temp_y / illum["Y"]
if temp_y > color_constants.CIE_E:
temp_y = math.pow(temp_y, (1.0 / 3.0))
else:
temp_y = (7.787 * temp_y) + (16.0 / 116.0)
ref_U = (4.0 * illum["X"]) / (illum["X"] + (15.0 * illum["Y"]) + (3.0 * illum["Z"]))
ref_V = (9.0 * illum["Y"]) / (illum["X"] + (15.0 * illum["Y"]) + (3.0 * illum["Z"]))
luv_l = (116.0 * temp_y) - 16.0
luv_u = 13.0 * luv_l * (luv_u - ref_U)
luv_v = 13.0 * luv_l * (luv_v - ref_V)
return LuvColor(
luv_l, luv_u, luv_v, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | XYZ_to_Lab | def XYZ_to_Lab(cobj, *args, **kwargs):
"""
Converts XYZ to Lab.
"""
illum = cobj.get_illuminant_xyz()
temp_x = cobj.xyz_x / illum["X"]
temp_y = cobj.xyz_y / illum["Y"]
temp_z = cobj.xyz_z / illum["Z"]
if temp_x > color_constants.CIE_E:
temp_x = math.pow(temp_x, (1.0 / 3.0))
else:
temp_x = (7.787 * temp_x) + (16.0 / 116.0)
if temp_y > color_constants.CIE_E:
temp_y = math.pow(temp_y, (1.0 / 3.0))
else:
temp_y = (7.787 * temp_y) + (16.0 / 116.0)
if temp_z > color_constants.CIE_E:
temp_z = math.pow(temp_z, (1.0 / 3.0))
else:
temp_z = (7.787 * temp_z) + (16.0 / 116.0)
lab_l = (116.0 * temp_y) - 16.0
lab_a = 500.0 * (temp_x - temp_y)
lab_b = 200.0 * (temp_y - temp_z)
return LabColor(
lab_l, lab_a, lab_b, observer=cobj.observer, illuminant=cobj.illuminant) | python | def XYZ_to_Lab(cobj, *args, **kwargs):
"""
Converts XYZ to Lab.
"""
illum = cobj.get_illuminant_xyz()
temp_x = cobj.xyz_x / illum["X"]
temp_y = cobj.xyz_y / illum["Y"]
temp_z = cobj.xyz_z / illum["Z"]
if temp_x > color_constants.CIE_E:
temp_x = math.pow(temp_x, (1.0 / 3.0))
else:
temp_x = (7.787 * temp_x) + (16.0 / 116.0)
if temp_y > color_constants.CIE_E:
temp_y = math.pow(temp_y, (1.0 / 3.0))
else:
temp_y = (7.787 * temp_y) + (16.0 / 116.0)
if temp_z > color_constants.CIE_E:
temp_z = math.pow(temp_z, (1.0 / 3.0))
else:
temp_z = (7.787 * temp_z) + (16.0 / 116.0)
lab_l = (116.0 * temp_y) - 16.0
lab_a = 500.0 * (temp_x - temp_y)
lab_b = 200.0 * (temp_y - temp_z)
return LabColor(
lab_l, lab_a, lab_b, observer=cobj.observer, illuminant=cobj.illuminant) | [
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gtaylor/python-colormath | colormath/color_conversions.py | XYZ_to_RGB | def XYZ_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
XYZ to RGB conversion.
"""
temp_X = cobj.xyz_x
temp_Y = cobj.xyz_y
temp_Z = cobj.xyz_z
logger.debug(" \- Target RGB space: %s", target_rgb)
target_illum = target_rgb.native_illuminant
logger.debug(" \- Target native illuminant: %s", target_illum)
logger.debug(" \- XYZ color's illuminant: %s", cobj.illuminant)
# If the XYZ values were taken with a different reference white than the
# native reference white of the target RGB space, a transformation matrix
# must be applied.
if cobj.illuminant != target_illum:
logger.debug(" \* Applying transformation from %s to %s ",
cobj.illuminant, target_illum)
# Get the adjusted XYZ values, adapted for the target illuminant.
temp_X, temp_Y, temp_Z = apply_chromatic_adaptation(
temp_X, temp_Y, temp_Z,
orig_illum=cobj.illuminant, targ_illum=target_illum)
logger.debug(" \* New values: %.3f, %.3f, %.3f",
temp_X, temp_Y, temp_Z)
# Apply an RGB working space matrix to the XYZ values (matrix mul).
rgb_r, rgb_g, rgb_b = apply_RGB_matrix(
temp_X, temp_Y, temp_Z,
rgb_type=target_rgb, convtype="xyz_to_rgb")
# v
linear_channels = dict(r=rgb_r, g=rgb_g, b=rgb_b)
# V
nonlinear_channels = {}
if target_rgb == sRGBColor:
for channel in ['r', 'g', 'b']:
v = linear_channels[channel]
if v <= 0.0031308:
nonlinear_channels[channel] = v * 12.92
else:
nonlinear_channels[channel] = 1.055 * math.pow(v, 1 / 2.4) - 0.055
elif target_rgb == BT2020Color:
if kwargs.get('is_12_bits_system'):
a, b = 1.0993, 0.0181
else:
a, b = 1.099, 0.018
for channel in ['r', 'g', 'b']:
v = linear_channels[channel]
if v < b:
nonlinear_channels[channel] = v * 4.5
else:
nonlinear_channels[channel] = a * math.pow(v, 0.45) - (a - 1)
else:
# If it's not sRGB...
for channel in ['r', 'g', 'b']:
v = linear_channels[channel]
nonlinear_channels[channel] = math.pow(v, 1 / target_rgb.rgb_gamma)
return target_rgb(
nonlinear_channels['r'], nonlinear_channels['g'], nonlinear_channels['b']) | python | def XYZ_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
XYZ to RGB conversion.
"""
temp_X = cobj.xyz_x
temp_Y = cobj.xyz_y
temp_Z = cobj.xyz_z
logger.debug(" \- Target RGB space: %s", target_rgb)
target_illum = target_rgb.native_illuminant
logger.debug(" \- Target native illuminant: %s", target_illum)
logger.debug(" \- XYZ color's illuminant: %s", cobj.illuminant)
# If the XYZ values were taken with a different reference white than the
# native reference white of the target RGB space, a transformation matrix
# must be applied.
if cobj.illuminant != target_illum:
logger.debug(" \* Applying transformation from %s to %s ",
cobj.illuminant, target_illum)
# Get the adjusted XYZ values, adapted for the target illuminant.
temp_X, temp_Y, temp_Z = apply_chromatic_adaptation(
temp_X, temp_Y, temp_Z,
orig_illum=cobj.illuminant, targ_illum=target_illum)
logger.debug(" \* New values: %.3f, %.3f, %.3f",
temp_X, temp_Y, temp_Z)
# Apply an RGB working space matrix to the XYZ values (matrix mul).
rgb_r, rgb_g, rgb_b = apply_RGB_matrix(
temp_X, temp_Y, temp_Z,
rgb_type=target_rgb, convtype="xyz_to_rgb")
# v
linear_channels = dict(r=rgb_r, g=rgb_g, b=rgb_b)
# V
nonlinear_channels = {}
if target_rgb == sRGBColor:
for channel in ['r', 'g', 'b']:
v = linear_channels[channel]
if v <= 0.0031308:
nonlinear_channels[channel] = v * 12.92
else:
nonlinear_channels[channel] = 1.055 * math.pow(v, 1 / 2.4) - 0.055
elif target_rgb == BT2020Color:
if kwargs.get('is_12_bits_system'):
a, b = 1.0993, 0.0181
else:
a, b = 1.099, 0.018
for channel in ['r', 'g', 'b']:
v = linear_channels[channel]
if v < b:
nonlinear_channels[channel] = v * 4.5
else:
nonlinear_channels[channel] = a * math.pow(v, 0.45) - (a - 1)
else:
# If it's not sRGB...
for channel in ['r', 'g', 'b']:
v = linear_channels[channel]
nonlinear_channels[channel] = math.pow(v, 1 / target_rgb.rgb_gamma)
return target_rgb(
nonlinear_channels['r'], nonlinear_channels['g'], nonlinear_channels['b']) | [
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gtaylor/python-colormath | colormath/color_conversions.py | RGB_to_XYZ | def RGB_to_XYZ(cobj, target_illuminant=None, *args, **kwargs):
"""
RGB to XYZ conversion. Expects 0-255 RGB values.
Based off of: http://www.brucelindbloom.com/index.html?Eqn_RGB_to_XYZ.html
"""
# Will contain linearized RGB channels (removed the gamma func).
linear_channels = {}
if isinstance(cobj, sRGBColor):
for channel in ['r', 'g', 'b']:
V = getattr(cobj, 'rgb_' + channel)
if V <= 0.04045:
linear_channels[channel] = V / 12.92
else:
linear_channels[channel] = math.pow((V + 0.055) / 1.055, 2.4)
elif isinstance(cobj, BT2020Color):
if kwargs.get('is_12_bits_system'):
a, b, c = 1.0993, 0.0181, 0.081697877417347
else:
a, b, c = 1.099, 0.018, 0.08124794403514049
for channel in ['r', 'g', 'b']:
V = getattr(cobj, 'rgb_' + channel)
if V <= c:
linear_channels[channel] = V / 4.5
else:
linear_channels[channel] = math.pow((V + (a - 1)) / a, 1 / 0.45)
else:
# If it's not sRGB...
gamma = cobj.rgb_gamma
for channel in ['r', 'g', 'b']:
V = getattr(cobj, 'rgb_' + channel)
linear_channels[channel] = math.pow(V, gamma)
# Apply an RGB working space matrix to the XYZ values (matrix mul).
xyz_x, xyz_y, xyz_z = apply_RGB_matrix(
linear_channels['r'], linear_channels['g'], linear_channels['b'],
rgb_type=cobj, convtype="rgb_to_xyz")
if target_illuminant is None:
target_illuminant = cobj.native_illuminant
# The illuminant of the original RGB object. This will always match
# the RGB colorspace's native illuminant.
illuminant = cobj.native_illuminant
xyzcolor = XYZColor(xyz_x, xyz_y, xyz_z, illuminant=illuminant)
# This will take care of any illuminant changes for us (if source
# illuminant != target illuminant).
xyzcolor.apply_adaptation(target_illuminant)
return xyzcolor | python | def RGB_to_XYZ(cobj, target_illuminant=None, *args, **kwargs):
"""
RGB to XYZ conversion. Expects 0-255 RGB values.
Based off of: http://www.brucelindbloom.com/index.html?Eqn_RGB_to_XYZ.html
"""
# Will contain linearized RGB channels (removed the gamma func).
linear_channels = {}
if isinstance(cobj, sRGBColor):
for channel in ['r', 'g', 'b']:
V = getattr(cobj, 'rgb_' + channel)
if V <= 0.04045:
linear_channels[channel] = V / 12.92
else:
linear_channels[channel] = math.pow((V + 0.055) / 1.055, 2.4)
elif isinstance(cobj, BT2020Color):
if kwargs.get('is_12_bits_system'):
a, b, c = 1.0993, 0.0181, 0.081697877417347
else:
a, b, c = 1.099, 0.018, 0.08124794403514049
for channel in ['r', 'g', 'b']:
V = getattr(cobj, 'rgb_' + channel)
if V <= c:
linear_channels[channel] = V / 4.5
else:
linear_channels[channel] = math.pow((V + (a - 1)) / a, 1 / 0.45)
else:
# If it's not sRGB...
gamma = cobj.rgb_gamma
for channel in ['r', 'g', 'b']:
V = getattr(cobj, 'rgb_' + channel)
linear_channels[channel] = math.pow(V, gamma)
# Apply an RGB working space matrix to the XYZ values (matrix mul).
xyz_x, xyz_y, xyz_z = apply_RGB_matrix(
linear_channels['r'], linear_channels['g'], linear_channels['b'],
rgb_type=cobj, convtype="rgb_to_xyz")
if target_illuminant is None:
target_illuminant = cobj.native_illuminant
# The illuminant of the original RGB object. This will always match
# the RGB colorspace's native illuminant.
illuminant = cobj.native_illuminant
xyzcolor = XYZColor(xyz_x, xyz_y, xyz_z, illuminant=illuminant)
# This will take care of any illuminant changes for us (if source
# illuminant != target illuminant).
xyzcolor.apply_adaptation(target_illuminant)
return xyzcolor | [
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gtaylor/python-colormath | colormath/color_conversions.py | __RGB_to_Hue | def __RGB_to_Hue(var_R, var_G, var_B, var_min, var_max):
"""
For RGB_to_HSL and RGB_to_HSV, the Hue (H) component is calculated in
the same way.
"""
if var_max == var_min:
return 0.0
elif var_max == var_R:
return (60.0 * ((var_G - var_B) / (var_max - var_min)) + 360) % 360.0
elif var_max == var_G:
return 60.0 * ((var_B - var_R) / (var_max - var_min)) + 120
elif var_max == var_B:
return 60.0 * ((var_R - var_G) / (var_max - var_min)) + 240.0 | python | def __RGB_to_Hue(var_R, var_G, var_B, var_min, var_max):
"""
For RGB_to_HSL and RGB_to_HSV, the Hue (H) component is calculated in
the same way.
"""
if var_max == var_min:
return 0.0
elif var_max == var_R:
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elif var_max == var_B:
return 60.0 * ((var_R - var_G) / (var_max - var_min)) + 240.0 | [
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gtaylor/python-colormath | colormath/color_conversions.py | RGB_to_HSV | def RGB_to_HSV(cobj, *args, **kwargs):
"""
Converts from RGB to HSV.
H values are in degrees and are 0 to 360.
S values are a percentage, 0.0 to 1.0.
V values are a percentage, 0.0 to 1.0.
"""
var_R = cobj.rgb_r
var_G = cobj.rgb_g
var_B = cobj.rgb_b
var_max = max(var_R, var_G, var_B)
var_min = min(var_R, var_G, var_B)
var_H = __RGB_to_Hue(var_R, var_G, var_B, var_min, var_max)
if var_max == 0:
var_S = 0
else:
var_S = 1.0 - (var_min / var_max)
var_V = var_max
return HSVColor(
var_H, var_S, var_V) | python | def RGB_to_HSV(cobj, *args, **kwargs):
"""
Converts from RGB to HSV.
H values are in degrees and are 0 to 360.
S values are a percentage, 0.0 to 1.0.
V values are a percentage, 0.0 to 1.0.
"""
var_R = cobj.rgb_r
var_G = cobj.rgb_g
var_B = cobj.rgb_b
var_max = max(var_R, var_G, var_B)
var_min = min(var_R, var_G, var_B)
var_H = __RGB_to_Hue(var_R, var_G, var_B, var_min, var_max)
if var_max == 0:
var_S = 0
else:
var_S = 1.0 - (var_min / var_max)
var_V = var_max
return HSVColor(
var_H, var_S, var_V) | [
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gtaylor/python-colormath | colormath/color_conversions.py | RGB_to_HSL | def RGB_to_HSL(cobj, *args, **kwargs):
"""
Converts from RGB to HSL.
H values are in degrees and are 0 to 360.
S values are a percentage, 0.0 to 1.0.
L values are a percentage, 0.0 to 1.0.
"""
var_R = cobj.rgb_r
var_G = cobj.rgb_g
var_B = cobj.rgb_b
var_max = max(var_R, var_G, var_B)
var_min = min(var_R, var_G, var_B)
var_H = __RGB_to_Hue(var_R, var_G, var_B, var_min, var_max)
var_L = 0.5 * (var_max + var_min)
if var_max == var_min:
var_S = 0
elif var_L <= 0.5:
var_S = (var_max - var_min) / (2.0 * var_L)
else:
var_S = (var_max - var_min) / (2.0 - (2.0 * var_L))
return HSLColor(
var_H, var_S, var_L) | python | def RGB_to_HSL(cobj, *args, **kwargs):
"""
Converts from RGB to HSL.
H values are in degrees and are 0 to 360.
S values are a percentage, 0.0 to 1.0.
L values are a percentage, 0.0 to 1.0.
"""
var_R = cobj.rgb_r
var_G = cobj.rgb_g
var_B = cobj.rgb_b
var_max = max(var_R, var_G, var_B)
var_min = min(var_R, var_G, var_B)
var_H = __RGB_to_Hue(var_R, var_G, var_B, var_min, var_max)
var_L = 0.5 * (var_max + var_min)
if var_max == var_min:
var_S = 0
elif var_L <= 0.5:
var_S = (var_max - var_min) / (2.0 * var_L)
else:
var_S = (var_max - var_min) / (2.0 - (2.0 * var_L))
return HSLColor(
var_H, var_S, var_L) | [
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gtaylor/python-colormath | colormath/color_conversions.py | __Calc_HSL_to_RGB_Components | def __Calc_HSL_to_RGB_Components(var_q, var_p, C):
"""
This is used in HSL_to_RGB conversions on R, G, and B.
"""
if C < 0:
C += 1.0
if C > 1:
C -= 1.0
# Computing C of vector (Color R, Color G, Color B)
if C < (1.0 / 6.0):
return var_p + ((var_q - var_p) * 6.0 * C)
elif (1.0 / 6.0) <= C < 0.5:
return var_q
elif 0.5 <= C < (2.0 / 3.0):
return var_p + ((var_q - var_p) * 6.0 * ((2.0 / 3.0) - C))
else:
return var_p | python | def __Calc_HSL_to_RGB_Components(var_q, var_p, C):
"""
This is used in HSL_to_RGB conversions on R, G, and B.
"""
if C < 0:
C += 1.0
if C > 1:
C -= 1.0
# Computing C of vector (Color R, Color G, Color B)
if C < (1.0 / 6.0):
return var_p + ((var_q - var_p) * 6.0 * C)
elif (1.0 / 6.0) <= C < 0.5:
return var_q
elif 0.5 <= C < (2.0 / 3.0):
return var_p + ((var_q - var_p) * 6.0 * ((2.0 / 3.0) - C))
else:
return var_p | [
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gtaylor/python-colormath | colormath/color_conversions.py | HSV_to_RGB | def HSV_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
HSV to RGB conversion.
H values are in degrees and are 0 to 360.
S values are a percentage, 0.0 to 1.0.
V values are a percentage, 0.0 to 1.0.
"""
H = cobj.hsv_h
S = cobj.hsv_s
V = cobj.hsv_v
h_floored = int(math.floor(H))
h_sub_i = int(h_floored / 60) % 6
var_f = (H / 60.0) - (h_floored // 60)
var_p = V * (1.0 - S)
var_q = V * (1.0 - var_f * S)
var_t = V * (1.0 - (1.0 - var_f) * S)
if h_sub_i == 0:
rgb_r = V
rgb_g = var_t
rgb_b = var_p
elif h_sub_i == 1:
rgb_r = var_q
rgb_g = V
rgb_b = var_p
elif h_sub_i == 2:
rgb_r = var_p
rgb_g = V
rgb_b = var_t
elif h_sub_i == 3:
rgb_r = var_p
rgb_g = var_q
rgb_b = V
elif h_sub_i == 4:
rgb_r = var_t
rgb_g = var_p
rgb_b = V
elif h_sub_i == 5:
rgb_r = V
rgb_g = var_p
rgb_b = var_q
else:
raise ValueError("Unable to convert HSL->RGB due to value error.")
# TODO: Investigate intent of following code block.
# In the event that they define an HSV color and want to convert it to
# a particular RGB space, let them override it here.
# if target_rgb is not None:
# rgb_type = target_rgb
# else:
# rgb_type = cobj.rgb_type
return target_rgb(rgb_r, rgb_g, rgb_b) | python | def HSV_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
HSV to RGB conversion.
H values are in degrees and are 0 to 360.
S values are a percentage, 0.0 to 1.0.
V values are a percentage, 0.0 to 1.0.
"""
H = cobj.hsv_h
S = cobj.hsv_s
V = cobj.hsv_v
h_floored = int(math.floor(H))
h_sub_i = int(h_floored / 60) % 6
var_f = (H / 60.0) - (h_floored // 60)
var_p = V * (1.0 - S)
var_q = V * (1.0 - var_f * S)
var_t = V * (1.0 - (1.0 - var_f) * S)
if h_sub_i == 0:
rgb_r = V
rgb_g = var_t
rgb_b = var_p
elif h_sub_i == 1:
rgb_r = var_q
rgb_g = V
rgb_b = var_p
elif h_sub_i == 2:
rgb_r = var_p
rgb_g = V
rgb_b = var_t
elif h_sub_i == 3:
rgb_r = var_p
rgb_g = var_q
rgb_b = V
elif h_sub_i == 4:
rgb_r = var_t
rgb_g = var_p
rgb_b = V
elif h_sub_i == 5:
rgb_r = V
rgb_g = var_p
rgb_b = var_q
else:
raise ValueError("Unable to convert HSL->RGB due to value error.")
# TODO: Investigate intent of following code block.
# In the event that they define an HSV color and want to convert it to
# a particular RGB space, let them override it here.
# if target_rgb is not None:
# rgb_type = target_rgb
# else:
# rgb_type = cobj.rgb_type
return target_rgb(rgb_r, rgb_g, rgb_b) | [
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gtaylor/python-colormath | colormath/color_conversions.py | HSL_to_RGB | def HSL_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
HSL to RGB conversion.
"""
H = cobj.hsl_h
S = cobj.hsl_s
L = cobj.hsl_l
if L < 0.5:
var_q = L * (1.0 + S)
else:
var_q = L + S - (L * S)
var_p = 2.0 * L - var_q
# H normalized to range [0,1]
h_sub_k = (H / 360.0)
t_sub_R = h_sub_k + (1.0 / 3.0)
t_sub_G = h_sub_k
t_sub_B = h_sub_k - (1.0 / 3.0)
rgb_r = __Calc_HSL_to_RGB_Components(var_q, var_p, t_sub_R)
rgb_g = __Calc_HSL_to_RGB_Components(var_q, var_p, t_sub_G)
rgb_b = __Calc_HSL_to_RGB_Components(var_q, var_p, t_sub_B)
# TODO: Investigate intent of following code block.
# In the event that they define an HSV color and want to convert it to
# a particular RGB space, let them override it here.
# if target_rgb is not None:
# rgb_type = target_rgb
# else:
# rgb_type = cobj.rgb_type
return target_rgb(rgb_r, rgb_g, rgb_b) | python | def HSL_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
HSL to RGB conversion.
"""
H = cobj.hsl_h
S = cobj.hsl_s
L = cobj.hsl_l
if L < 0.5:
var_q = L * (1.0 + S)
else:
var_q = L + S - (L * S)
var_p = 2.0 * L - var_q
# H normalized to range [0,1]
h_sub_k = (H / 360.0)
t_sub_R = h_sub_k + (1.0 / 3.0)
t_sub_G = h_sub_k
t_sub_B = h_sub_k - (1.0 / 3.0)
rgb_r = __Calc_HSL_to_RGB_Components(var_q, var_p, t_sub_R)
rgb_g = __Calc_HSL_to_RGB_Components(var_q, var_p, t_sub_G)
rgb_b = __Calc_HSL_to_RGB_Components(var_q, var_p, t_sub_B)
# TODO: Investigate intent of following code block.
# In the event that they define an HSV color and want to convert it to
# a particular RGB space, let them override it here.
# if target_rgb is not None:
# rgb_type = target_rgb
# else:
# rgb_type = cobj.rgb_type
return target_rgb(rgb_r, rgb_g, rgb_b) | [
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gtaylor/python-colormath | colormath/color_conversions.py | RGB_to_CMY | def RGB_to_CMY(cobj, *args, **kwargs):
"""
RGB to CMY conversion.
NOTE: CMYK and CMY values range from 0.0 to 1.0
"""
cmy_c = 1.0 - cobj.rgb_r
cmy_m = 1.0 - cobj.rgb_g
cmy_y = 1.0 - cobj.rgb_b
return CMYColor(cmy_c, cmy_m, cmy_y) | python | def RGB_to_CMY(cobj, *args, **kwargs):
"""
RGB to CMY conversion.
NOTE: CMYK and CMY values range from 0.0 to 1.0
"""
cmy_c = 1.0 - cobj.rgb_r
cmy_m = 1.0 - cobj.rgb_g
cmy_y = 1.0 - cobj.rgb_b
return CMYColor(cmy_c, cmy_m, cmy_y) | [
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gtaylor/python-colormath | colormath/color_conversions.py | CMY_to_RGB | def CMY_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
Converts CMY to RGB via simple subtraction.
NOTE: Returned values are in the range of 0-255.
"""
rgb_r = 1.0 - cobj.cmy_c
rgb_g = 1.0 - cobj.cmy_m
rgb_b = 1.0 - cobj.cmy_y
return target_rgb(rgb_r, rgb_g, rgb_b) | python | def CMY_to_RGB(cobj, target_rgb, *args, **kwargs):
"""
Converts CMY to RGB via simple subtraction.
NOTE: Returned values are in the range of 0-255.
"""
rgb_r = 1.0 - cobj.cmy_c
rgb_g = 1.0 - cobj.cmy_m
rgb_b = 1.0 - cobj.cmy_y
return target_rgb(rgb_r, rgb_g, rgb_b) | [
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gtaylor/python-colormath | colormath/color_conversions.py | CMY_to_CMYK | def CMY_to_CMYK(cobj, *args, **kwargs):
"""
Converts from CMY to CMYK.
NOTE: CMYK and CMY values range from 0.0 to 1.0
"""
var_k = 1.0
if cobj.cmy_c < var_k:
var_k = cobj.cmy_c
if cobj.cmy_m < var_k:
var_k = cobj.cmy_m
if cobj.cmy_y < var_k:
var_k = cobj.cmy_y
if var_k == 1:
cmyk_c = 0.0
cmyk_m = 0.0
cmyk_y = 0.0
else:
cmyk_c = (cobj.cmy_c - var_k) / (1.0 - var_k)
cmyk_m = (cobj.cmy_m - var_k) / (1.0 - var_k)
cmyk_y = (cobj.cmy_y - var_k) / (1.0 - var_k)
cmyk_k = var_k
return CMYKColor(cmyk_c, cmyk_m, cmyk_y, cmyk_k) | python | def CMY_to_CMYK(cobj, *args, **kwargs):
"""
Converts from CMY to CMYK.
NOTE: CMYK and CMY values range from 0.0 to 1.0
"""
var_k = 1.0
if cobj.cmy_c < var_k:
var_k = cobj.cmy_c
if cobj.cmy_m < var_k:
var_k = cobj.cmy_m
if cobj.cmy_y < var_k:
var_k = cobj.cmy_y
if var_k == 1:
cmyk_c = 0.0
cmyk_m = 0.0
cmyk_y = 0.0
else:
cmyk_c = (cobj.cmy_c - var_k) / (1.0 - var_k)
cmyk_m = (cobj.cmy_m - var_k) / (1.0 - var_k)
cmyk_y = (cobj.cmy_y - var_k) / (1.0 - var_k)
cmyk_k = var_k
return CMYKColor(cmyk_c, cmyk_m, cmyk_y, cmyk_k) | [
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gtaylor/python-colormath | colormath/color_conversions.py | CMYK_to_CMY | def CMYK_to_CMY(cobj, *args, **kwargs):
"""
Converts CMYK to CMY.
NOTE: CMYK and CMY values range from 0.0 to 1.0
"""
cmy_c = cobj.cmyk_c * (1.0 - cobj.cmyk_k) + cobj.cmyk_k
cmy_m = cobj.cmyk_m * (1.0 - cobj.cmyk_k) + cobj.cmyk_k
cmy_y = cobj.cmyk_y * (1.0 - cobj.cmyk_k) + cobj.cmyk_k
return CMYColor(cmy_c, cmy_m, cmy_y) | python | def CMYK_to_CMY(cobj, *args, **kwargs):
"""
Converts CMYK to CMY.
NOTE: CMYK and CMY values range from 0.0 to 1.0
"""
cmy_c = cobj.cmyk_c * (1.0 - cobj.cmyk_k) + cobj.cmyk_k
cmy_m = cobj.cmyk_m * (1.0 - cobj.cmyk_k) + cobj.cmyk_k
cmy_y = cobj.cmyk_y * (1.0 - cobj.cmyk_k) + cobj.cmyk_k
return CMYColor(cmy_c, cmy_m, cmy_y) | [
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gtaylor/python-colormath | colormath/color_conversions.py | XYZ_to_IPT | def XYZ_to_IPT(cobj, *args, **kwargs):
"""
Converts XYZ to IPT.
NOTE: XYZ values need to be adapted to 2 degree D65
Reference:
Fairchild, M. D. (2013). Color appearance models, 3rd Ed. (pp. 271-272). John Wiley & Sons.
"""
if cobj.illuminant != 'd65' or cobj.observer != '2':
raise ValueError('XYZColor for XYZ->IPT conversion needs to be D65 adapted.')
xyz_values = numpy.array(cobj.get_value_tuple())
lms_values = numpy.dot(
IPTColor.conversion_matrices['xyz_to_lms'],
xyz_values)
lms_prime = numpy.sign(lms_values) * numpy.abs(lms_values) ** 0.43
ipt_values = numpy.dot(
IPTColor.conversion_matrices['lms_to_ipt'],
lms_prime)
return IPTColor(*ipt_values) | python | def XYZ_to_IPT(cobj, *args, **kwargs):
"""
Converts XYZ to IPT.
NOTE: XYZ values need to be adapted to 2 degree D65
Reference:
Fairchild, M. D. (2013). Color appearance models, 3rd Ed. (pp. 271-272). John Wiley & Sons.
"""
if cobj.illuminant != 'd65' or cobj.observer != '2':
raise ValueError('XYZColor for XYZ->IPT conversion needs to be D65 adapted.')
xyz_values = numpy.array(cobj.get_value_tuple())
lms_values = numpy.dot(
IPTColor.conversion_matrices['xyz_to_lms'],
xyz_values)
lms_prime = numpy.sign(lms_values) * numpy.abs(lms_values) ** 0.43
ipt_values = numpy.dot(
IPTColor.conversion_matrices['lms_to_ipt'],
lms_prime)
return IPTColor(*ipt_values) | [
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gtaylor/python-colormath | colormath/color_conversions.py | IPT_to_XYZ | def IPT_to_XYZ(cobj, *args, **kwargs):
"""
Converts IPT to XYZ.
"""
ipt_values = numpy.array(cobj.get_value_tuple())
lms_values = numpy.dot(
numpy.linalg.inv(IPTColor.conversion_matrices['lms_to_ipt']),
ipt_values)
lms_prime = numpy.sign(lms_values) * numpy.abs(lms_values) ** (1 / 0.43)
xyz_values = numpy.dot(
numpy.linalg.inv(IPTColor.conversion_matrices['xyz_to_lms']),
lms_prime)
return XYZColor(*xyz_values, observer='2', illuminant='d65') | python | def IPT_to_XYZ(cobj, *args, **kwargs):
"""
Converts IPT to XYZ.
"""
ipt_values = numpy.array(cobj.get_value_tuple())
lms_values = numpy.dot(
numpy.linalg.inv(IPTColor.conversion_matrices['lms_to_ipt']),
ipt_values)
lms_prime = numpy.sign(lms_values) * numpy.abs(lms_values) ** (1 / 0.43)
xyz_values = numpy.dot(
numpy.linalg.inv(IPTColor.conversion_matrices['xyz_to_lms']),
lms_prime)
return XYZColor(*xyz_values, observer='2', illuminant='d65') | [
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gtaylor/python-colormath | colormath/color_conversions.py | convert_color | def convert_color(color, target_cs, through_rgb_type=sRGBColor,
target_illuminant=None, *args, **kwargs):
"""
Converts the color to the designated color space.
:param color: A Color instance to convert.
:param target_cs: The Color class to convert to. Note that this is not
an instance, but a class.
:keyword BaseRGBColor through_rgb_type: If during your conversion between
your original and target color spaces you have to pass through RGB,
this determines which kind of RGB to use. For example, XYZ->HSL.
You probably don't need to specify this unless you have a special
usage case.
:type target_illuminant: None or str
:keyword target_illuminant: If during conversion from RGB to a reflective
color space you want to explicitly end up with a certain illuminant,
pass this here. Otherwise the RGB space's native illuminant
will be used.
:returns: An instance of the type passed in as ``target_cs``.
:raises: :py:exc:`colormath.color_exceptions.UndefinedConversionError`
if conversion between the two color spaces isn't possible.
"""
if isinstance(target_cs, str):
raise ValueError("target_cs parameter must be a Color object.")
if not issubclass(target_cs, ColorBase):
raise ValueError("target_cs parameter must be a Color object.")
conversions = _conversion_manager.get_conversion_path(color.__class__, target_cs)
logger.debug('Converting %s to %s', color, target_cs)
logger.debug(' @ Conversion path: %s', conversions)
# Start with original color in case we convert to the same color space.
new_color = color
if issubclass(target_cs, BaseRGBColor):
# If the target_cs is an RGB color space of some sort, then we
# have to set our through_rgb_type to make sure the conversion returns
# the expected RGB colorspace (instead of defaulting to sRGBColor).
through_rgb_type = target_cs
# We have to be careful to use the same RGB color space that created
# an object (if it was created by a conversion) in order to get correct
# results. For example, XYZ->HSL via Adobe RGB should default to Adobe
# RGB when taking that generated HSL object back to XYZ.
# noinspection PyProtectedMember
if through_rgb_type != sRGBColor:
# User overrides take priority over everything.
# noinspection PyProtectedMember
target_rgb = through_rgb_type
elif color._through_rgb_type:
# Otherwise, a value on the color object is the next best thing,
# when available.
# noinspection PyProtectedMember
target_rgb = color._through_rgb_type
else:
# We could collapse this into a single if statement above,
# but I think this reads better.
target_rgb = through_rgb_type
# Iterate through the list of functions for the conversion path, storing
# the results in a dictionary via update(). This way the user has access
# to all of the variables involved in the conversion.
for func in conversions:
# Execute the function in this conversion step and store the resulting
# Color object.
logger.debug(' * Conversion: %s passed to %s()',
new_color.__class__.__name__, func)
logger.debug(' |-> in %s', new_color)
if func:
# This can be None if you try to convert a color to the color
# space that is already in. IE: XYZ->XYZ.
new_color = func(
new_color,
target_rgb=target_rgb,
target_illuminant=target_illuminant,
*args, **kwargs)
logger.debug(' |-< out %s', new_color)
# If this conversion had something other than the default sRGB color space
# requested,
if through_rgb_type != sRGBColor:
new_color._through_rgb_type = through_rgb_type
return new_color | python | def convert_color(color, target_cs, through_rgb_type=sRGBColor,
target_illuminant=None, *args, **kwargs):
"""
Converts the color to the designated color space.
:param color: A Color instance to convert.
:param target_cs: The Color class to convert to. Note that this is not
an instance, but a class.
:keyword BaseRGBColor through_rgb_type: If during your conversion between
your original and target color spaces you have to pass through RGB,
this determines which kind of RGB to use. For example, XYZ->HSL.
You probably don't need to specify this unless you have a special
usage case.
:type target_illuminant: None or str
:keyword target_illuminant: If during conversion from RGB to a reflective
color space you want to explicitly end up with a certain illuminant,
pass this here. Otherwise the RGB space's native illuminant
will be used.
:returns: An instance of the type passed in as ``target_cs``.
:raises: :py:exc:`colormath.color_exceptions.UndefinedConversionError`
if conversion between the two color spaces isn't possible.
"""
if isinstance(target_cs, str):
raise ValueError("target_cs parameter must be a Color object.")
if not issubclass(target_cs, ColorBase):
raise ValueError("target_cs parameter must be a Color object.")
conversions = _conversion_manager.get_conversion_path(color.__class__, target_cs)
logger.debug('Converting %s to %s', color, target_cs)
logger.debug(' @ Conversion path: %s', conversions)
# Start with original color in case we convert to the same color space.
new_color = color
if issubclass(target_cs, BaseRGBColor):
# If the target_cs is an RGB color space of some sort, then we
# have to set our through_rgb_type to make sure the conversion returns
# the expected RGB colorspace (instead of defaulting to sRGBColor).
through_rgb_type = target_cs
# We have to be careful to use the same RGB color space that created
# an object (if it was created by a conversion) in order to get correct
# results. For example, XYZ->HSL via Adobe RGB should default to Adobe
# RGB when taking that generated HSL object back to XYZ.
# noinspection PyProtectedMember
if through_rgb_type != sRGBColor:
# User overrides take priority over everything.
# noinspection PyProtectedMember
target_rgb = through_rgb_type
elif color._through_rgb_type:
# Otherwise, a value on the color object is the next best thing,
# when available.
# noinspection PyProtectedMember
target_rgb = color._through_rgb_type
else:
# We could collapse this into a single if statement above,
# but I think this reads better.
target_rgb = through_rgb_type
# Iterate through the list of functions for the conversion path, storing
# the results in a dictionary via update(). This way the user has access
# to all of the variables involved in the conversion.
for func in conversions:
# Execute the function in this conversion step and store the resulting
# Color object.
logger.debug(' * Conversion: %s passed to %s()',
new_color.__class__.__name__, func)
logger.debug(' |-> in %s', new_color)
if func:
# This can be None if you try to convert a color to the color
# space that is already in. IE: XYZ->XYZ.
new_color = func(
new_color,
target_rgb=target_rgb,
target_illuminant=target_illuminant,
*args, **kwargs)
logger.debug(' |-< out %s', new_color)
# If this conversion had something other than the default sRGB color space
# requested,
if through_rgb_type != sRGBColor:
new_color._through_rgb_type = through_rgb_type
return new_color | [
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gtaylor/python-colormath | colormath/color_conversions.py | ConversionManager.add_type_conversion | def add_type_conversion(self, start_type, target_type, conversion_function):
"""
Register a conversion function between two color spaces.
:param start_type: Starting color space.
:param target_type: Target color space.
:param conversion_function: Conversion function.
"""
self.registered_color_spaces.add(start_type)
self.registered_color_spaces.add(target_type)
logger.debug(
'Registered conversion from %s to %s', start_type, target_type) | python | def add_type_conversion(self, start_type, target_type, conversion_function):
"""
Register a conversion function between two color spaces.
:param start_type: Starting color space.
:param target_type: Target color space.
:param conversion_function: Conversion function.
"""
self.registered_color_spaces.add(start_type)
self.registered_color_spaces.add(target_type)
logger.debug(
'Registered conversion from %s to %s', start_type, target_type) | [
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gtaylor/python-colormath | colormath/color_appearance_models.py | Hunt._adaptation | def _adaptation(self, f_l, l_a, xyz, xyz_w, xyz_b, xyz_p=None, p=None, helson_judd=False, discount_illuminant=True):
"""
:param f_l: Luminance adaptation factor
:param l_a: Adapting luminance
:param xyz: Stimulus color in XYZ
:param xyz_w: Reference white color in XYZ
:param xyz_b: Background color in XYZ
:param xyz_p: Proxima field color in XYZ
:param p: Simultaneous contrast/assimilation parameter.
"""
rgb = self.xyz_to_rgb(xyz)
logger.debug('RGB: {}'.format(rgb))
rgb_w = self.xyz_to_rgb(xyz_w)
logger.debug('RGB_W: {}'.format(rgb_w))
y_w = xyz_w[1]
y_b = xyz_b[1]
h_rgb = 3 * rgb_w / (rgb_w.sum())
logger.debug('H_RGB: {}'.format(h_rgb))
# Chromatic adaptation factors
if not discount_illuminant:
f_rgb = (1 + (l_a ** (1 / 3)) + h_rgb) / (1 + (l_a ** (1 / 3)) + (1 / h_rgb))
else:
f_rgb = numpy.ones(numpy.shape(h_rgb))
logger.debug('F_RGB: {}'.format(f_rgb))
# Adaptation factor
if helson_judd:
d_rgb = self._f_n((y_b / y_w) * f_l * f_rgb[1]) - self._f_n((y_b / y_w) * f_l * f_rgb)
assert d_rgb[1] == 0
else:
d_rgb = numpy.zeros(numpy.shape(f_rgb))
logger.debug('D_RGB: {}'.format(d_rgb))
# Cone bleaching factors
rgb_b = (10 ** 7) / ((10 ** 7) + 5 * l_a * (rgb_w / 100))
logger.debug('B_RGB: {}'.format(rgb_b))
if xyz_p is not None and p is not None:
logger.debug('Account for simultaneous chromatic contrast')
rgb_p = self.xyz_to_rgb(xyz_p)
rgb_w = self.adjust_white_for_scc(rgb_p, rgb_b, rgb_w, p)
# Adapt rgb using modified
rgb_a = 1 + rgb_b * (self._f_n(f_l * f_rgb * rgb / rgb_w) + d_rgb)
logger.debug('RGB_A: {}'.format(rgb_a))
return rgb_a | python | def _adaptation(self, f_l, l_a, xyz, xyz_w, xyz_b, xyz_p=None, p=None, helson_judd=False, discount_illuminant=True):
"""
:param f_l: Luminance adaptation factor
:param l_a: Adapting luminance
:param xyz: Stimulus color in XYZ
:param xyz_w: Reference white color in XYZ
:param xyz_b: Background color in XYZ
:param xyz_p: Proxima field color in XYZ
:param p: Simultaneous contrast/assimilation parameter.
"""
rgb = self.xyz_to_rgb(xyz)
logger.debug('RGB: {}'.format(rgb))
rgb_w = self.xyz_to_rgb(xyz_w)
logger.debug('RGB_W: {}'.format(rgb_w))
y_w = xyz_w[1]
y_b = xyz_b[1]
h_rgb = 3 * rgb_w / (rgb_w.sum())
logger.debug('H_RGB: {}'.format(h_rgb))
# Chromatic adaptation factors
if not discount_illuminant:
f_rgb = (1 + (l_a ** (1 / 3)) + h_rgb) / (1 + (l_a ** (1 / 3)) + (1 / h_rgb))
else:
f_rgb = numpy.ones(numpy.shape(h_rgb))
logger.debug('F_RGB: {}'.format(f_rgb))
# Adaptation factor
if helson_judd:
d_rgb = self._f_n((y_b / y_w) * f_l * f_rgb[1]) - self._f_n((y_b / y_w) * f_l * f_rgb)
assert d_rgb[1] == 0
else:
d_rgb = numpy.zeros(numpy.shape(f_rgb))
logger.debug('D_RGB: {}'.format(d_rgb))
# Cone bleaching factors
rgb_b = (10 ** 7) / ((10 ** 7) + 5 * l_a * (rgb_w / 100))
logger.debug('B_RGB: {}'.format(rgb_b))
if xyz_p is not None and p is not None:
logger.debug('Account for simultaneous chromatic contrast')
rgb_p = self.xyz_to_rgb(xyz_p)
rgb_w = self.adjust_white_for_scc(rgb_p, rgb_b, rgb_w, p)
# Adapt rgb using modified
rgb_a = 1 + rgb_b * (self._f_n(f_l * f_rgb * rgb / rgb_w) + d_rgb)
logger.debug('RGB_A: {}'.format(rgb_a))
return rgb_a | [
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:param l_a: Adapting luminance
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:param xyz_w: Reference white color in XYZ
:param xyz_b: Background color in XYZ
:param xyz_p: Proxima field color in XYZ
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gtaylor/python-colormath | colormath/color_appearance_models.py | Hunt.adjust_white_for_scc | def adjust_white_for_scc(cls, rgb_p, rgb_b, rgb_w, p):
"""
Adjust the white point for simultaneous chromatic contrast.
:param rgb_p: Cone signals of proxima field.
:param rgb_b: Cone signals of background.
:param rgb_w: Cone signals of reference white.
:param p: Simultaneous contrast/assimilation parameter.
:return: Adjusted cone signals for reference white.
"""
p_rgb = rgb_p / rgb_b
rgb_w = rgb_w * (((1 - p) * p_rgb + (1 + p) / p_rgb) ** 0.5) / (((1 + p) * p_rgb + (1 - p) / p_rgb) ** 0.5)
return rgb_w | python | def adjust_white_for_scc(cls, rgb_p, rgb_b, rgb_w, p):
"""
Adjust the white point for simultaneous chromatic contrast.
:param rgb_p: Cone signals of proxima field.
:param rgb_b: Cone signals of background.
:param rgb_w: Cone signals of reference white.
:param p: Simultaneous contrast/assimilation parameter.
:return: Adjusted cone signals for reference white.
"""
p_rgb = rgb_p / rgb_b
rgb_w = rgb_w * (((1 - p) * p_rgb + (1 + p) / p_rgb) ** 0.5) / (((1 + p) * p_rgb + (1 - p) / p_rgb) ** 0.5)
return rgb_w | [
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gtaylor/python-colormath | colormath/color_appearance_models.py | Hunt._get_cct | def _get_cct(x, y, z):
"""
Reference
Hernandez-Andres, J., Lee, R. L., & Romero, J. (1999).
Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities.
Applied Optics, 38(27), 5703-5709.
"""
x_e = 0.3320
y_e = 0.1858
n = ((x / (x + z + z)) - x_e) / ((y / (x + z + z)) - y_e)
a_0 = -949.86315
a_1 = 6253.80338
a_2 = 28.70599
a_3 = 0.00004
t_1 = 0.92159
t_2 = 0.20039
t_3 = 0.07125
cct = a_0 + a_1 * numpy.exp(-n / t_1) + a_2 * numpy.exp(-n / t_2) + a_3 * numpy.exp(-n / t_3)
return cct | python | def _get_cct(x, y, z):
"""
Reference
Hernandez-Andres, J., Lee, R. L., & Romero, J. (1999).
Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities.
Applied Optics, 38(27), 5703-5709.
"""
x_e = 0.3320
y_e = 0.1858
n = ((x / (x + z + z)) - x_e) / ((y / (x + z + z)) - y_e)
a_0 = -949.86315
a_1 = 6253.80338
a_2 = 28.70599
a_3 = 0.00004
t_1 = 0.92159
t_2 = 0.20039
t_3 = 0.07125
cct = a_0 + a_1 * numpy.exp(-n / t_1) + a_2 * numpy.exp(-n / t_2) + a_3 * numpy.exp(-n / t_3)
return cct | [
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Hernandez-Andres, J., Lee, R. L., & Romero, J. (1999).
Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities.
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gtaylor/python-colormath | colormath/color_appearance_models.py | CIECAM02m1._compute_adaptation | def _compute_adaptation(self, xyz, xyz_w, f_l, d):
"""
Modified adaptation procedure incorporating simultaneous chromatic contrast from Hunt model.
:param xyz: Stimulus XYZ.
:param xyz_w: Reference white XYZ.
:param f_l: Luminance adaptation factor
:param d: Degree of adaptation.
:return: Tuple of adapted rgb and rgb_w arrays.
"""
# Transform input colors to cone responses
rgb = self._xyz_to_rgb(xyz)
logger.debug("RGB: {}".format(rgb))
rgb_b = self._xyz_to_rgb(self._xyz_b)
rgb_w = self._xyz_to_rgb(xyz_w)
rgb_w = Hunt.adjust_white_for_scc(rgb, rgb_b, rgb_w, self._p)
logger.debug("RGB_W: {}".format(rgb_w))
# Compute adapted tristimulus-responses
rgb_c = self._white_adaption(rgb, rgb_w, d)
logger.debug("RGB_C: {}".format(rgb_c))
rgb_cw = self._white_adaption(rgb_w, rgb_w, d)
logger.debug("RGB_CW: {}".format(rgb_cw))
# Convert adapted tristimulus-responses to Hunt-Pointer-Estevez fundamentals
rgb_p = self._compute_hunt_pointer_estevez_fundamentals(rgb_c)
logger.debug("RGB': {}".format(rgb_p))
rgb_wp = self._compute_hunt_pointer_estevez_fundamentals(rgb_cw)
logger.debug("RGB'_W: {}".format(rgb_wp))
# Compute post-adaptation non-linearities
rgb_ap = self._compute_nonlinearities(f_l, rgb_p)
rgb_awp = self._compute_nonlinearities(f_l, rgb_wp)
return rgb_ap, rgb_awp | python | def _compute_adaptation(self, xyz, xyz_w, f_l, d):
"""
Modified adaptation procedure incorporating simultaneous chromatic contrast from Hunt model.
:param xyz: Stimulus XYZ.
:param xyz_w: Reference white XYZ.
:param f_l: Luminance adaptation factor
:param d: Degree of adaptation.
:return: Tuple of adapted rgb and rgb_w arrays.
"""
# Transform input colors to cone responses
rgb = self._xyz_to_rgb(xyz)
logger.debug("RGB: {}".format(rgb))
rgb_b = self._xyz_to_rgb(self._xyz_b)
rgb_w = self._xyz_to_rgb(xyz_w)
rgb_w = Hunt.adjust_white_for_scc(rgb, rgb_b, rgb_w, self._p)
logger.debug("RGB_W: {}".format(rgb_w))
# Compute adapted tristimulus-responses
rgb_c = self._white_adaption(rgb, rgb_w, d)
logger.debug("RGB_C: {}".format(rgb_c))
rgb_cw = self._white_adaption(rgb_w, rgb_w, d)
logger.debug("RGB_CW: {}".format(rgb_cw))
# Convert adapted tristimulus-responses to Hunt-Pointer-Estevez fundamentals
rgb_p = self._compute_hunt_pointer_estevez_fundamentals(rgb_c)
logger.debug("RGB': {}".format(rgb_p))
rgb_wp = self._compute_hunt_pointer_estevez_fundamentals(rgb_cw)
logger.debug("RGB'_W: {}".format(rgb_wp))
# Compute post-adaptation non-linearities
rgb_ap = self._compute_nonlinearities(f_l, rgb_p)
rgb_awp = self._compute_nonlinearities(f_l, rgb_wp)
return rgb_ap, rgb_awp | [
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:param d: Degree of adaptation.
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twilio/authy-python | authy/api/resources.py | Instance.errors | def errors(self):
"""
:return error dict if no success:
"""
if self.ok():
return {}
errors = self.content
if(not isinstance(errors, dict)):
errors = {"error": errors} # convert to dict for consistency
elif('errors' in errors):
errors = errors['errors']
return errors | python | def errors(self):
"""
:return error dict if no success:
"""
if self.ok():
return {}
errors = self.content
if(not isinstance(errors, dict)):
errors = {"error": errors} # convert to dict for consistency
elif('errors' in errors):
errors = errors['errors']
return errors | [
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twilio/authy-python | authy/api/resources.py | Users.create | def create(self, email, phone, country_code=1, send_install_link_via_sms=False):
"""
sends request to create new user.
:param string email:
:param string phone:
:param string country_code:
:param bool send_install_link_via_sms:
:return:
"""
data = {
"user": {
"email": email,
"cellphone": phone,
"country_code": country_code
},
'send_install_link_via_sms': send_install_link_via_sms
}
resp = self.post("/protected/json/users/new", data)
return User(self, resp) | python | def create(self, email, phone, country_code=1, send_install_link_via_sms=False):
"""
sends request to create new user.
:param string email:
:param string phone:
:param string country_code:
:param bool send_install_link_via_sms:
:return:
"""
data = {
"user": {
"email": email,
"cellphone": phone,
"country_code": country_code
},
'send_install_link_via_sms': send_install_link_via_sms
}
resp = self.post("/protected/json/users/new", data)
return User(self, resp) | [
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twilio/authy-python | authy/api/resources.py | Phones.verification_start | def verification_start(self, phone_number, country_code, via='sms',
locale=None, code_length=4):
"""
:param string phone_number: stored in your databse or you provided while creating new user.
:param string country_code: stored in your databse or you provided while creating new user.
:param string via: verification method either sms or call
:param string locale: optional default none
:param number code_length: optional default 4
:return:
"""
if via != 'sms' and via != 'call':
raise AuthyFormatException("Invalid Via. Expected 'sms' or 'call'.")
options = {
'phone_number': phone_number,
'country_code': country_code,
'via': via
}
if locale:
options['locale'] = locale
try:
cl = int(code_length)
if cl < 4 or cl > 10:
raise ValueError
options['code_length'] = cl
except ValueError:
raise AuthyFormatException(
"Invalid code_length. Expected numeric value from 4-10.")
resp = self.post("/protected/json/phones/verification/start", options)
return Phone(self, resp) | python | def verification_start(self, phone_number, country_code, via='sms',
locale=None, code_length=4):
"""
:param string phone_number: stored in your databse or you provided while creating new user.
:param string country_code: stored in your databse or you provided while creating new user.
:param string via: verification method either sms or call
:param string locale: optional default none
:param number code_length: optional default 4
:return:
"""
if via != 'sms' and via != 'call':
raise AuthyFormatException("Invalid Via. Expected 'sms' or 'call'.")
options = {
'phone_number': phone_number,
'country_code': country_code,
'via': via
}
if locale:
options['locale'] = locale
try:
cl = int(code_length)
if cl < 4 or cl > 10:
raise ValueError
options['code_length'] = cl
except ValueError:
raise AuthyFormatException(
"Invalid code_length. Expected numeric value from 4-10.")
resp = self.post("/protected/json/phones/verification/start", options)
return Phone(self, resp) | [
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twilio/authy-python | authy/api/resources.py | Phones.verification_check | def verification_check(self, phone_number, country_code, verification_code):
"""
:param phone_number:
:param country_code:
:param verification_code:
:return:
"""
options = {
'phone_number': phone_number,
'country_code': country_code,
'verification_code': verification_code
}
resp = self.get("/protected/json/phones/verification/check", options)
return Phone(self, resp) | python | def verification_check(self, phone_number, country_code, verification_code):
"""
:param phone_number:
:param country_code:
:param verification_code:
:return:
"""
options = {
'phone_number': phone_number,
'country_code': country_code,
'verification_code': verification_code
}
resp = self.get("/protected/json/phones/verification/check", options)
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twilio/authy-python | authy/api/resources.py | OneTouch.send_request | def send_request(self, user_id, message, seconds_to_expire=None, details={}, hidden_details={}, logos=[]):
"""
OneTouch verification request. Sends a request for Auth App. For more info https://www.twilio.com/docs/api/authy/authy-onetouch-api
:param string user_id: user_id User's authy id stored in your database
:param string message: Required, the message shown to the user when the approval request arrives.
:param number seconds_to_expire: Optional, defaults to 120 (two minutes).
:param dict details: For example details['Requested by'] = 'MacBook Pro, Chrome'; it will be displayed on Authy app
:param dict hidden_details: Same usage as detail except this detail is not shown in Authy app
:param list logos: Contains the logos that will be shown to user. The logos parameter is expected to be an array of objects, each object with two fields: res (values are default,low,med,high) and url
:return OneTouchResponse: the server response Json Object
"""
self._validate_request(user_id, message)
data = {
"message": message[:MAX_STRING_SIZE],
"seconds_to_expire": seconds_to_expire,
"details": self.__clean_inputs(details),
'hidden_details': self.__clean_inputs(hidden_details),
'logos': self.clean_logos(logos)
}
request_url = "/onetouch/json/users/{0}/approval_requests".format(
user_id)
response = self.post(request_url, data)
return OneTouchResponse(self, response) | python | def send_request(self, user_id, message, seconds_to_expire=None, details={}, hidden_details={}, logos=[]):
"""
OneTouch verification request. Sends a request for Auth App. For more info https://www.twilio.com/docs/api/authy/authy-onetouch-api
:param string user_id: user_id User's authy id stored in your database
:param string message: Required, the message shown to the user when the approval request arrives.
:param number seconds_to_expire: Optional, defaults to 120 (two minutes).
:param dict details: For example details['Requested by'] = 'MacBook Pro, Chrome'; it will be displayed on Authy app
:param dict hidden_details: Same usage as detail except this detail is not shown in Authy app
:param list logos: Contains the logos that will be shown to user. The logos parameter is expected to be an array of objects, each object with two fields: res (values are default,low,med,high) and url
:return OneTouchResponse: the server response Json Object
"""
self._validate_request(user_id, message)
data = {
"message": message[:MAX_STRING_SIZE],
"seconds_to_expire": seconds_to_expire,
"details": self.__clean_inputs(details),
'hidden_details': self.__clean_inputs(hidden_details),
'logos': self.clean_logos(logos)
}
request_url = "/onetouch/json/users/{0}/approval_requests".format(
user_id)
response = self.post(request_url, data)
return OneTouchResponse(self, response) | [
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twilio/authy-python | authy/api/resources.py | OneTouch.clean_logos | def clean_logos(self, logos):
"""
Validate logos input.
:param list logos:
:return list logos:
"""
if not len(logos):
return logos # Allow nil hash
if not isinstance(logos, list):
raise AuthyFormatException(
'Invalid logos list. Only res and url required')
temp_array = {}
clean_logos = []
for logo in logos:
if not isinstance(logo, dict):
raise AuthyFormatException('Invalid logo type')
for l in logo:
# We ignore any additional parameter on the logos, and truncate
# string size to the maximum allowed.
if l == 'res':
temp_array['res'] = logo[l][:MAX_STRING_SIZE]
elif l == 'url':
temp_array['url'] = logo[l][:MAX_STRING_SIZE]
else:
raise AuthyFormatException(
'Invalid logos list. Only res and url required')
clean_logos.append(temp_array)
temp_array = {}
return clean_logos | python | def clean_logos(self, logos):
"""
Validate logos input.
:param list logos:
:return list logos:
"""
if not len(logos):
return logos # Allow nil hash
if not isinstance(logos, list):
raise AuthyFormatException(
'Invalid logos list. Only res and url required')
temp_array = {}
clean_logos = []
for logo in logos:
if not isinstance(logo, dict):
raise AuthyFormatException('Invalid logo type')
for l in logo:
# We ignore any additional parameter on the logos, and truncate
# string size to the maximum allowed.
if l == 'res':
temp_array['res'] = logo[l][:MAX_STRING_SIZE]
elif l == 'url':
temp_array['url'] = logo[l][:MAX_STRING_SIZE]
else:
raise AuthyFormatException(
'Invalid logos list. Only res and url required')
clean_logos.append(temp_array)
temp_array = {}
return clean_logos | [
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twilio/authy-python | authy/api/resources.py | OneTouch.get_approval_status | def get_approval_status(self, uuid):
"""
OneTouch verification request. Sends a request for Auth App. For more info https://www.twilio.com/docs/api/authy/authy-onetouch-api
:param string uuid Required. The approval request ID. (Obtained from the response to an ApprovalRequest):
:return OneTouchResponse the server response Json Object:
"""
request_url = "/onetouch/json/approval_requests/{0}".format(uuid)
response = self.get(request_url)
return OneTouchResponse(self, response) | python | def get_approval_status(self, uuid):
"""
OneTouch verification request. Sends a request for Auth App. For more info https://www.twilio.com/docs/api/authy/authy-onetouch-api
:param string uuid Required. The approval request ID. (Obtained from the response to an ApprovalRequest):
:return OneTouchResponse the server response Json Object:
"""
request_url = "/onetouch/json/approval_requests/{0}".format(uuid)
response = self.get(request_url)
return OneTouchResponse(self, response) | [
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twilio/authy-python | authy/api/resources.py | OneTouch.validate_one_touch_signature | def validate_one_touch_signature(self, signature, nonce, method, url, params):
"""
Function to validate signature in X-Authy-Signature key of headers.
:param string signature: X-Authy-Signature key of headers.
:param string nonce: X-Authy-Signature-Nonce key of headers.
:param string method: GET or POST - configured in app settings for OneTouch.
:param string url: base callback url.
:param dict params: params sent by Authy.
:return bool: True if calculated signature and X-Authy-Signature are identical else False.
"""
if not signature or not isinstance(signature, str):
raise AuthyFormatException(
"Invalid signature - should not be empty. It is required")
if not nonce:
raise AuthyFormatException(
"Invalid nonce - should not be empty. It is required")
if not method or not ('get' == method.lower() or 'post' == method.lower()):
raise AuthyFormatException(
"Invalid method - should not be empty. It is required")
if not params or not isinstance(params, dict):
raise AuthyFormatException(
"Invalid params - should not be empty. It is required")
query_params = self.__make_http_query(params)
# Sort and replace encoded params in case-sensitive order
sorted_params = '&'.join(sorted(query_params.replace(
'/', '%2F').replace('%20', '+').split('&')))
sorted_params = re.sub("\\%5B([0-9])*\\%5D", "%5B%5D", sorted_params)
sorted_params = re.sub("\\=None", "=", sorted_params)
data = nonce + "|" + method + "|" + url + "|" + sorted_params
try:
calculated_signature = base64.b64encode(
hmac.new(self.api_key.encode(), data.encode(), hashlib.sha256).digest())
return calculated_signature.decode() == signature
except:
calculated_signature = base64.b64encode(
hmac.new(self.api_key, data, hashlib.sha256).digest())
return calculated_signature == signature | python | def validate_one_touch_signature(self, signature, nonce, method, url, params):
"""
Function to validate signature in X-Authy-Signature key of headers.
:param string signature: X-Authy-Signature key of headers.
:param string nonce: X-Authy-Signature-Nonce key of headers.
:param string method: GET or POST - configured in app settings for OneTouch.
:param string url: base callback url.
:param dict params: params sent by Authy.
:return bool: True if calculated signature and X-Authy-Signature are identical else False.
"""
if not signature or not isinstance(signature, str):
raise AuthyFormatException(
"Invalid signature - should not be empty. It is required")
if not nonce:
raise AuthyFormatException(
"Invalid nonce - should not be empty. It is required")
if not method or not ('get' == method.lower() or 'post' == method.lower()):
raise AuthyFormatException(
"Invalid method - should not be empty. It is required")
if not params or not isinstance(params, dict):
raise AuthyFormatException(
"Invalid params - should not be empty. It is required")
query_params = self.__make_http_query(params)
# Sort and replace encoded params in case-sensitive order
sorted_params = '&'.join(sorted(query_params.replace(
'/', '%2F').replace('%20', '+').split('&')))
sorted_params = re.sub("\\%5B([0-9])*\\%5D", "%5B%5D", sorted_params)
sorted_params = re.sub("\\=None", "=", sorted_params)
data = nonce + "|" + method + "|" + url + "|" + sorted_params
try:
calculated_signature = base64.b64encode(
hmac.new(self.api_key.encode(), data.encode(), hashlib.sha256).digest())
return calculated_signature.decode() == signature
except:
calculated_signature = base64.b64encode(
hmac.new(self.api_key, data, hashlib.sha256).digest())
return calculated_signature == signature | [
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twilio/authy-python | authy/api/resources.py | OneTouch.__make_http_query | def __make_http_query(self, params, topkey=''):
"""
Function to covert params into url encoded query string
:param dict params: Json string sent by Authy.
:param string topkey: params key
:return string: url encoded Query.
"""
if len(params) == 0:
return ""
result = ""
# is a dictionary?
if type(params) is dict:
for key in params.keys():
newkey = quote(key)
if topkey != '':
newkey = topkey + quote('[' + key + ']')
if type(params[key]) is dict:
result += self.__make_http_query(params[key], newkey)
elif type(params[key]) is list:
i = 0
for val in params[key]:
if type(val) is dict:
result += self.__make_http_query(
val, newkey + quote('['+str(i)+']'))
else:
result += newkey + \
quote('['+str(i)+']') + "=" + \
quote(str(val)) + "&"
i = i + 1
# boolean should have special treatment as well
elif type(params[key]) is bool:
result += newkey + "=" + \
quote(str(params[key]).lower()) + "&"
# assume string (integers and floats work well)
else:
result += newkey + "=" + quote(str(params[key])) + "&"
# remove the last '&'
if (result) and (topkey == '') and (result[-1] == '&'):
result = result[:-1]
return result | python | def __make_http_query(self, params, topkey=''):
"""
Function to covert params into url encoded query string
:param dict params: Json string sent by Authy.
:param string topkey: params key
:return string: url encoded Query.
"""
if len(params) == 0:
return ""
result = ""
# is a dictionary?
if type(params) is dict:
for key in params.keys():
newkey = quote(key)
if topkey != '':
newkey = topkey + quote('[' + key + ']')
if type(params[key]) is dict:
result += self.__make_http_query(params[key], newkey)
elif type(params[key]) is list:
i = 0
for val in params[key]:
if type(val) is dict:
result += self.__make_http_query(
val, newkey + quote('['+str(i)+']'))
else:
result += newkey + \
quote('['+str(i)+']') + "=" + \
quote(str(val)) + "&"
i = i + 1
# boolean should have special treatment as well
elif type(params[key]) is bool:
result += newkey + "=" + \
quote(str(params[key]).lower()) + "&"
# assume string (integers and floats work well)
else:
result += newkey + "=" + quote(str(params[key])) + "&"
# remove the last '&'
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result = result[:-1]
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:param dict params: Json string sent by Authy.
:param string topkey: params key
:return string: url encoded Query. | [
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doloopwhile/pyjq | pyjq.py | compile | def compile(script, vars={}, library_paths=[]):
"""
Compile a jq script, retuning a script object.
library_paths is a list of strings that defines the module search path.
"""
return _pyjq.Script(script.encode('utf-8'), vars=vars,
library_paths=library_paths) | python | def compile(script, vars={}, library_paths=[]):
"""
Compile a jq script, retuning a script object.
library_paths is a list of strings that defines the module search path.
"""
return _pyjq.Script(script.encode('utf-8'), vars=vars,
library_paths=library_paths) | [
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doloopwhile/pyjq | pyjq.py | apply | def apply(script, value=None, vars={}, url=None, opener=default_opener, library_paths=[]):
"""
Transform value by script, returning all results as list.
"""
return all(script, value, vars, url, opener, library_paths) | python | def apply(script, value=None, vars={}, url=None, opener=default_opener, library_paths=[]):
"""
Transform value by script, returning all results as list.
"""
return all(script, value, vars, url, opener, library_paths) | [
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doloopwhile/pyjq | pyjq.py | first | def first(script, value=None, default=None, vars={}, url=None, opener=default_opener, library_paths=[]):
"""
Transform object by jq script, returning the first result.
Return default if result is empty.
"""
return compile(script, vars, library_paths).first(_get_value(value, url, opener), default) | python | def first(script, value=None, default=None, vars={}, url=None, opener=default_opener, library_paths=[]):
"""
Transform object by jq script, returning the first result.
Return default if result is empty.
"""
return compile(script, vars, library_paths).first(_get_value(value, url, opener), default) | [
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doloopwhile/pyjq | pyjq.py | one | def one(script, value=None, vars={}, url=None, opener=default_opener, library_paths=[]):
"""
Transform object by jq script, returning the first result.
Raise ValueError unless results does not include exactly one element.
"""
return compile(script, vars, library_paths).one(_get_value(value, url, opener)) | python | def one(script, value=None, vars={}, url=None, opener=default_opener, library_paths=[]):
"""
Transform object by jq script, returning the first result.
Raise ValueError unless results does not include exactly one element.
"""
return compile(script, vars, library_paths).one(_get_value(value, url, opener)) | [
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ambv/flake8-mypy | flake8_mypy.py | calculate_mypypath | def calculate_mypypath() -> List[str]:
"""Return MYPYPATH so that stubs have precedence over local sources."""
typeshed_root = None
count = 0
started = time.time()
for parent in itertools.chain(
# Look in current script's parents, useful for zipapps.
Path(__file__).parents,
# Look around site-packages, useful for virtualenvs.
Path(mypy.api.__file__).parents,
# Look in global paths, useful for globally installed.
Path(os.__file__).parents,
):
count += 1
candidate = parent / 'lib' / 'mypy' / 'typeshed'
if candidate.is_dir():
typeshed_root = candidate
break
# Also check the non-installed path, useful for `setup.py develop`.
candidate = parent / 'typeshed'
if candidate.is_dir():
typeshed_root = candidate
break
LOG.debug(
'Checked %d paths in %.2fs looking for typeshed. Found %s',
count,
time.time() - started,
typeshed_root,
)
if not typeshed_root:
return []
stdlib_dirs = ('3.7', '3.6', '3.5', '3.4', '3.3', '3.2', '3', '2and3')
stdlib_stubs = [
typeshed_root / 'stdlib' / stdlib_dir
for stdlib_dir in stdlib_dirs
]
third_party_dirs = ('3.7', '3.6', '3', '2and3')
third_party_stubs = [
typeshed_root / 'third_party' / tp_dir
for tp_dir in third_party_dirs
]
return [
str(p) for p in stdlib_stubs + third_party_stubs
] | python | def calculate_mypypath() -> List[str]:
"""Return MYPYPATH so that stubs have precedence over local sources."""
typeshed_root = None
count = 0
started = time.time()
for parent in itertools.chain(
# Look in current script's parents, useful for zipapps.
Path(__file__).parents,
# Look around site-packages, useful for virtualenvs.
Path(mypy.api.__file__).parents,
# Look in global paths, useful for globally installed.
Path(os.__file__).parents,
):
count += 1
candidate = parent / 'lib' / 'mypy' / 'typeshed'
if candidate.is_dir():
typeshed_root = candidate
break
# Also check the non-installed path, useful for `setup.py develop`.
candidate = parent / 'typeshed'
if candidate.is_dir():
typeshed_root = candidate
break
LOG.debug(
'Checked %d paths in %.2fs looking for typeshed. Found %s',
count,
time.time() - started,
typeshed_root,
)
if not typeshed_root:
return []
stdlib_dirs = ('3.7', '3.6', '3.5', '3.4', '3.3', '3.2', '3', '2and3')
stdlib_stubs = [
typeshed_root / 'stdlib' / stdlib_dir
for stdlib_dir in stdlib_dirs
]
third_party_dirs = ('3.7', '3.6', '3', '2and3')
third_party_stubs = [
typeshed_root / 'third_party' / tp_dir
for tp_dir in third_party_dirs
]
return [
str(p) for p in stdlib_stubs + third_party_stubs
] | [
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LPgenerator/django-db-mailer | dbmail/providers/pubnub/push.py | send | def send(channel, message, **kwargs):
"""
Site: http://www.pubnub.com/
API: https://www.mashape.com/pubnub/pubnub-network
Desc: real-time browser notifications
Installation and usage:
pip install -U pubnub
Tests for browser notification http://127.0.0.1:8000/browser_notification/
"""
pubnub = Pubnub(
publish_key=settings.PUBNUB_PUB_KEY,
subscribe_key=settings.PUBNUB_SUB_KEY,
secret_key=settings.PUBNUB_SEC_KEY,
ssl_on=kwargs.pop('ssl_on', False), **kwargs)
return pubnub.publish(channel=channel, message={"text": message}) | python | def send(channel, message, **kwargs):
"""
Site: http://www.pubnub.com/
API: https://www.mashape.com/pubnub/pubnub-network
Desc: real-time browser notifications
Installation and usage:
pip install -U pubnub
Tests for browser notification http://127.0.0.1:8000/browser_notification/
"""
pubnub = Pubnub(
publish_key=settings.PUBNUB_PUB_KEY,
subscribe_key=settings.PUBNUB_SUB_KEY,
secret_key=settings.PUBNUB_SEC_KEY,
ssl_on=kwargs.pop('ssl_on', False), **kwargs)
return pubnub.publish(channel=channel, message={"text": message}) | [
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LPgenerator/django-db-mailer | dbmail/providers/boxcar/push.py | send | def send(token, title, **kwargs):
"""
Site: https://boxcar.io/
API: http://help.boxcar.io/knowledgebase/topics/48115-boxcar-api
Desc: Best app for system administrators
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
}
data = {
"user_credentials": token,
"notification[title]": from_unicode(title),
"notification[sound]": "notifier-2"
}
for k, v in kwargs.items():
data['notification[%s]' % k] = from_unicode(v)
http = HTTPSConnection(kwargs.pop("api_url", "new.boxcar.io"))
http.request(
"POST", "/api/notifications",
headers=headers,
body=urlencode(data))
response = http.getresponse()
if response.status != 201:
raise BoxcarError(response.reason)
return True | python | def send(token, title, **kwargs):
"""
Site: https://boxcar.io/
API: http://help.boxcar.io/knowledgebase/topics/48115-boxcar-api
Desc: Best app for system administrators
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
}
data = {
"user_credentials": token,
"notification[title]": from_unicode(title),
"notification[sound]": "notifier-2"
}
for k, v in kwargs.items():
data['notification[%s]' % k] = from_unicode(v)
http = HTTPSConnection(kwargs.pop("api_url", "new.boxcar.io"))
http.request(
"POST", "/api/notifications",
headers=headers,
body=urlencode(data))
response = http.getresponse()
if response.status != 201:
raise BoxcarError(response.reason)
return True | [
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API: http://help.boxcar.io/knowledgebase/topics/48115-boxcar-api
Desc: Best app for system administrators | [
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LPgenerator/django-db-mailer | dbmail/providers/slack/push.py | send | def send(channel, message, **kwargs):
"""
Site: https://slack.com
API: https://api.slack.com
Desc: real-time messaging
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
}
username = from_unicode(kwargs.pop("username", settings.SLACK_USERNAME))
hook_url = from_unicode(kwargs.pop("hook_url", settings.SLACK_HOOCK_URL))
channel = from_unicode(channel or settings.SLACK_CHANNEL)
emoji = from_unicode(kwargs.pop("emoji", ""))
message = from_unicode(message)
data = {
"channel": channel,
"username": username,
"text": message,
"icon_emoji": emoji,
}
_data = kwargs.pop('data', None)
if _data is not None:
data.update(_data)
up = urlparse(hook_url)
http = HTTPSConnection(up.netloc)
http.request(
"POST", up.path,
headers=headers,
body=urlencode({"payload": dumps(data)}))
response = http.getresponse()
if response.status != 200:
raise SlackError(response.reason)
body = response.read()
if body != "ok":
raise SlackError(repr(body))
return True | python | def send(channel, message, **kwargs):
"""
Site: https://slack.com
API: https://api.slack.com
Desc: real-time messaging
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
}
username = from_unicode(kwargs.pop("username", settings.SLACK_USERNAME))
hook_url = from_unicode(kwargs.pop("hook_url", settings.SLACK_HOOCK_URL))
channel = from_unicode(channel or settings.SLACK_CHANNEL)
emoji = from_unicode(kwargs.pop("emoji", ""))
message = from_unicode(message)
data = {
"channel": channel,
"username": username,
"text": message,
"icon_emoji": emoji,
}
_data = kwargs.pop('data', None)
if _data is not None:
data.update(_data)
up = urlparse(hook_url)
http = HTTPSConnection(up.netloc)
http.request(
"POST", up.path,
headers=headers,
body=urlencode({"payload": dumps(data)}))
response = http.getresponse()
if response.status != 200:
raise SlackError(response.reason)
body = response.read()
if body != "ok":
raise SlackError(repr(body))
return True | [
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API: https://api.slack.com
Desc: real-time messaging | [
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LPgenerator/django-db-mailer | dbmail/providers/smsaero/sms.py | send | def send(sms_to, sms_body, **kwargs):
"""
Site: http://smsaero.ru/
API: http://smsaero.ru/api/
"""
headers = {
"User-Agent": "DBMail/%s" % get_version(),
}
kwargs.update({
'user': settings.SMSAERO_LOGIN,
'password': settings.SMSAERO_MD5_PASSWORD,
'from': kwargs.pop('sms_from', settings.SMSAERO_FROM),
'to': sms_to.replace('+', ''),
'text': from_unicode(sms_body),
'answer': 'json',
})
http = HTTPConnection(kwargs.pop("api_url", "gate.smsaero.ru"))
http.request("GET", "/send/?" + urlencode(kwargs), headers=headers)
response = http.getresponse()
if response.status != 200:
raise AeroSmsError(response.reason)
read = response.read().decode(response.headers.get_content_charset())
data = json.loads(read)
status = None
if 'result' in data:
status = data['result']
sms_id = None
if 'id' in data:
sms_id = data['id']
if sms_id and status == 'accepted':
return True
return False | python | def send(sms_to, sms_body, **kwargs):
"""
Site: http://smsaero.ru/
API: http://smsaero.ru/api/
"""
headers = {
"User-Agent": "DBMail/%s" % get_version(),
}
kwargs.update({
'user': settings.SMSAERO_LOGIN,
'password': settings.SMSAERO_MD5_PASSWORD,
'from': kwargs.pop('sms_from', settings.SMSAERO_FROM),
'to': sms_to.replace('+', ''),
'text': from_unicode(sms_body),
'answer': 'json',
})
http = HTTPConnection(kwargs.pop("api_url", "gate.smsaero.ru"))
http.request("GET", "/send/?" + urlencode(kwargs), headers=headers)
response = http.getresponse()
if response.status != 200:
raise AeroSmsError(response.reason)
read = response.read().decode(response.headers.get_content_charset())
data = json.loads(read)
status = None
if 'result' in data:
status = data['result']
sms_id = None
if 'id' in data:
sms_id = data['id']
if sms_id and status == 'accepted':
return True
return False | [
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API: http://smsaero.ru/api/ | [
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LPgenerator/django-db-mailer | dbmail/providers/sendinblue/mail.py | email_list_to_email_dict | def email_list_to_email_dict(email_list):
"""Convert a list of email to a dict of email."""
if email_list is None:
return {}
result = {}
for value in email_list:
realname, address = email.utils.parseaddr(value)
result[address] = realname if realname and address else address
return result | python | def email_list_to_email_dict(email_list):
"""Convert a list of email to a dict of email."""
if email_list is None:
return {}
result = {}
for value in email_list:
realname, address = email.utils.parseaddr(value)
result[address] = realname if realname and address else address
return result | [
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LPgenerator/django-db-mailer | dbmail/providers/sendinblue/mail.py | email_address_to_list | def email_address_to_list(email_address):
"""Convert an email address to a list."""
realname, address = email.utils.parseaddr(email_address)
return (
[address, realname] if realname and address else
[email_address, email_address]
) | python | def email_address_to_list(email_address):
"""Convert an email address to a list."""
realname, address = email.utils.parseaddr(email_address)
return (
[address, realname] if realname and address else
[email_address, email_address]
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LPgenerator/django-db-mailer | dbmail/providers/sendinblue/mail.py | send | def send(sender_instance):
"""Send a transactional email using SendInBlue API.
Site: https://www.sendinblue.com
API: https://apidocs.sendinblue.com/
"""
m = Mailin(
"https://api.sendinblue.com/v2.0",
sender_instance._kwargs.get("api_key")
)
data = {
"to": email_list_to_email_dict(sender_instance._recipient_list),
"cc": email_list_to_email_dict(sender_instance._cc),
"bcc": email_list_to_email_dict(sender_instance._bcc),
"from": email_address_to_list(sender_instance._from_email),
"subject": sender_instance._subject,
}
if sender_instance._template.is_html:
data.update({
"html": sender_instance._message,
"headers": {"Content-Type": "text/html; charset=utf-8"}
})
else:
data.update({"text": sender_instance._message})
if "attachments" in sender_instance._kwargs:
data["attachment"] = {}
for attachment in sender_instance._kwargs["attachments"]:
data["attachment"][attachment[0]] = base64.b64encode(attachment[1])
result = m.send_email(data)
if result["code"] != "success":
raise SendInBlueError(result["message"]) | python | def send(sender_instance):
"""Send a transactional email using SendInBlue API.
Site: https://www.sendinblue.com
API: https://apidocs.sendinblue.com/
"""
m = Mailin(
"https://api.sendinblue.com/v2.0",
sender_instance._kwargs.get("api_key")
)
data = {
"to": email_list_to_email_dict(sender_instance._recipient_list),
"cc": email_list_to_email_dict(sender_instance._cc),
"bcc": email_list_to_email_dict(sender_instance._bcc),
"from": email_address_to_list(sender_instance._from_email),
"subject": sender_instance._subject,
}
if sender_instance._template.is_html:
data.update({
"html": sender_instance._message,
"headers": {"Content-Type": "text/html; charset=utf-8"}
})
else:
data.update({"text": sender_instance._message})
if "attachments" in sender_instance._kwargs:
data["attachment"] = {}
for attachment in sender_instance._kwargs["attachments"]:
data["attachment"][attachment[0]] = base64.b64encode(attachment[1])
result = m.send_email(data)
if result["code"] != "success":
raise SendInBlueError(result["message"]) | [
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Site: https://www.sendinblue.com
API: https://apidocs.sendinblue.com/ | [
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LPgenerator/django-db-mailer | dbmail/providers/iqsms/sms.py | send | def send(sms_to, sms_body, **kwargs):
"""
Site: http://iqsms.ru/
API: http://iqsms.ru/api/
"""
headers = {
"User-Agent": "DBMail/%s" % get_version(),
'Authorization': 'Basic %s' % b64encode(
"%s:%s" % (
settings.IQSMS_API_LOGIN, settings.IQSMS_API_PASSWORD
)).decode("ascii")
}
kwargs.update({
'phone': sms_to,
'text': from_unicode(sms_body),
'sender': kwargs.pop('sms_from', settings.IQSMS_FROM)
})
http = HTTPConnection(kwargs.pop("api_url", "gate.iqsms.ru"))
http.request("GET", "/send/?" + urlencode(kwargs), headers=headers)
response = http.getresponse()
if response.status != 200:
raise IQSMSError(response.reason)
body = response.read().strip()
if '=accepted' not in body:
raise IQSMSError(body)
return int(body.split('=')[0]) | python | def send(sms_to, sms_body, **kwargs):
"""
Site: http://iqsms.ru/
API: http://iqsms.ru/api/
"""
headers = {
"User-Agent": "DBMail/%s" % get_version(),
'Authorization': 'Basic %s' % b64encode(
"%s:%s" % (
settings.IQSMS_API_LOGIN, settings.IQSMS_API_PASSWORD
)).decode("ascii")
}
kwargs.update({
'phone': sms_to,
'text': from_unicode(sms_body),
'sender': kwargs.pop('sms_from', settings.IQSMS_FROM)
})
http = HTTPConnection(kwargs.pop("api_url", "gate.iqsms.ru"))
http.request("GET", "/send/?" + urlencode(kwargs), headers=headers)
response = http.getresponse()
if response.status != 200:
raise IQSMSError(response.reason)
body = response.read().strip()
if '=accepted' not in body:
raise IQSMSError(body)
return int(body.split('=')[0]) | [
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API: http://iqsms.ru/api/ | [
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LPgenerator/django-db-mailer | dbmail/providers/parse_com/push.py | send | def send(device_id, description, **kwargs):
"""
Site: http://parse.com
API: https://www.parse.com/docs/push_guide#scheduled/REST
Desc: Best app for system administrators
"""
headers = {
"X-Parse-Application-Id": settings.PARSE_APP_ID,
"X-Parse-REST-API-Key": settings.PARSE_API_KEY,
"User-Agent": "DBMail/%s" % get_version(),
"Content-type": "application/json",
}
data = {
"where": {
"user_id": device_id,
},
"data": {
"alert": description,
"title": kwargs.pop("event")
}
}
_data = kwargs.pop('data', None)
if _data is not None:
data.update(_data)
http = HTTPSConnection(kwargs.pop("api_url", "api.parse.com"))
http.request(
"POST", "/1/push",
headers=headers,
body=dumps(data))
response = http.getresponse()
if response.status != 200:
raise ParseComError(response.reason)
body = loads(response.read())
if body['error']:
raise ParseComError(body['error'])
return True | python | def send(device_id, description, **kwargs):
"""
Site: http://parse.com
API: https://www.parse.com/docs/push_guide#scheduled/REST
Desc: Best app for system administrators
"""
headers = {
"X-Parse-Application-Id": settings.PARSE_APP_ID,
"X-Parse-REST-API-Key": settings.PARSE_API_KEY,
"User-Agent": "DBMail/%s" % get_version(),
"Content-type": "application/json",
}
data = {
"where": {
"user_id": device_id,
},
"data": {
"alert": description,
"title": kwargs.pop("event")
}
}
_data = kwargs.pop('data', None)
if _data is not None:
data.update(_data)
http = HTTPSConnection(kwargs.pop("api_url", "api.parse.com"))
http.request(
"POST", "/1/push",
headers=headers,
body=dumps(data))
response = http.getresponse()
if response.status != 200:
raise ParseComError(response.reason)
body = loads(response.read())
if body['error']:
raise ParseComError(body['error'])
return True | [
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API: https://www.parse.com/docs/push_guide#scheduled/REST
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LPgenerator/django-db-mailer | dbmail/providers/prowl/push.py | send | def send(api_key, description, **kwargs):
"""
Site: http://prowlapp.com
API: http://prowlapp.com/api.php
Desc: Best app for system administrators
"""
headers = {
"User-Agent": "DBMail/%s" % get_version(),
"Content-type": "application/x-www-form-urlencoded"
}
application = from_unicode(kwargs.pop("app", settings.PROWL_APP), 256)
event = from_unicode(kwargs.pop("event", 'Alert'), 1024)
description = from_unicode(description, 10000)
data = {
"apikey": api_key,
"application": application,
"event": event,
"description": description,
"priority": kwargs.pop("priority", 1)
}
provider_key = kwargs.pop("providerkey", None)
url = kwargs.pop('url', None)
if provider_key is not None:
data["providerkey"] = provider_key
if url is not None:
data["url"] = url[0:512]
http = HTTPSConnection(kwargs.pop("api_url", "api.prowlapp.com"))
http.request(
"POST", "/publicapi/add",
headers=headers,
body=urlencode(data))
response = http.getresponse()
if response.status != 200:
raise ProwlError(response.reason)
return True | python | def send(api_key, description, **kwargs):
"""
Site: http://prowlapp.com
API: http://prowlapp.com/api.php
Desc: Best app for system administrators
"""
headers = {
"User-Agent": "DBMail/%s" % get_version(),
"Content-type": "application/x-www-form-urlencoded"
}
application = from_unicode(kwargs.pop("app", settings.PROWL_APP), 256)
event = from_unicode(kwargs.pop("event", 'Alert'), 1024)
description = from_unicode(description, 10000)
data = {
"apikey": api_key,
"application": application,
"event": event,
"description": description,
"priority": kwargs.pop("priority", 1)
}
provider_key = kwargs.pop("providerkey", None)
url = kwargs.pop('url', None)
if provider_key is not None:
data["providerkey"] = provider_key
if url is not None:
data["url"] = url[0:512]
http = HTTPSConnection(kwargs.pop("api_url", "api.prowlapp.com"))
http.request(
"POST", "/publicapi/add",
headers=headers,
body=urlencode(data))
response = http.getresponse()
if response.status != 200:
raise ProwlError(response.reason)
return True | [
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API: http://prowlapp.com/api.php
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LPgenerator/django-db-mailer | dbmail/providers/apple/apns.py | send | def send(token_hex, message, **kwargs):
"""
Site: https://apple.com
API: https://developer.apple.com
Desc: iOS notifications
"""
is_enhanced = kwargs.pop('is_enhanced', False)
identifier = kwargs.pop('identifier', 0)
expiry = kwargs.pop('expiry', 0)
alert = {
"title": kwargs.pop("event"),
"body": message,
"action": kwargs.pop(
'apns_action', defaults.APNS_PROVIDER_DEFAULT_ACTION)
}
data = {
"aps": {
'alert': alert,
'content-available': kwargs.pop('content_available', 0) and 1
}
}
data['aps'].update(kwargs)
payload = dumps(data, separators=(',', ':'))
token = a2b_hex(token_hex)
if is_enhanced is True:
fmt = '!BIIH32sH%ds' % len(payload)
expiry = expiry and time() + expiry
notification = pack(
fmt, 1, identifier, expiry,
32, token, len(payload), payload)
else:
token_length_bin = pack('>H', len(token))
payload_length_bin = pack('>H', len(payload))
zero_byte = bytes('\0', 'utf-8') if PY3 is True else '\0'
payload = bytes(payload, 'utf-8') if PY3 is True else payload
notification = (
zero_byte + token_length_bin + token +
payload_length_bin + payload)
sock = socket(AF_INET, SOCK_STREAM)
sock.settimeout(3)
sock.connect((settings.APNS_GW_HOST, settings.APNS_GW_PORT))
ssl = wrap_socket(
sock, settings.APNS_KEY_FILE,
settings.APNS_CERT_FILE,
do_handshake_on_connect=False)
result = ssl.write(notification)
sock.close()
ssl.close()
if not result:
raise APNsError
return True | python | def send(token_hex, message, **kwargs):
"""
Site: https://apple.com
API: https://developer.apple.com
Desc: iOS notifications
"""
is_enhanced = kwargs.pop('is_enhanced', False)
identifier = kwargs.pop('identifier', 0)
expiry = kwargs.pop('expiry', 0)
alert = {
"title": kwargs.pop("event"),
"body": message,
"action": kwargs.pop(
'apns_action', defaults.APNS_PROVIDER_DEFAULT_ACTION)
}
data = {
"aps": {
'alert': alert,
'content-available': kwargs.pop('content_available', 0) and 1
}
}
data['aps'].update(kwargs)
payload = dumps(data, separators=(',', ':'))
token = a2b_hex(token_hex)
if is_enhanced is True:
fmt = '!BIIH32sH%ds' % len(payload)
expiry = expiry and time() + expiry
notification = pack(
fmt, 1, identifier, expiry,
32, token, len(payload), payload)
else:
token_length_bin = pack('>H', len(token))
payload_length_bin = pack('>H', len(payload))
zero_byte = bytes('\0', 'utf-8') if PY3 is True else '\0'
payload = bytes(payload, 'utf-8') if PY3 is True else payload
notification = (
zero_byte + token_length_bin + token +
payload_length_bin + payload)
sock = socket(AF_INET, SOCK_STREAM)
sock.settimeout(3)
sock.connect((settings.APNS_GW_HOST, settings.APNS_GW_PORT))
ssl = wrap_socket(
sock, settings.APNS_KEY_FILE,
settings.APNS_CERT_FILE,
do_handshake_on_connect=False)
result = ssl.write(notification)
sock.close()
ssl.close()
if not result:
raise APNsError
return True | [
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API: https://developer.apple.com
Desc: iOS notifications | [
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LPgenerator/django-db-mailer | dbmail/providers/pushall/push.py | send | def send(ch, message, **kwargs):
"""
Site: https://pushall.ru
API: https://pushall.ru/blog/api
Desc: App for notification to devices/browsers and messaging apps
"""
params = {
'type': kwargs.pop('req_type', 'self'),
'key': settings.PUSHALL_API_KEYS[ch]['key'],
'id': settings.PUSHALL_API_KEYS[ch]['id'],
'title': kwargs.pop(
"title", settings.PUSHALL_API_KEYS[ch].get('title') or ""),
'text': message,
'priority': kwargs.pop(
"priority", settings.PUSHALL_API_KEYS[ch].get('priority') or "0"),
}
if kwargs:
params.update(**kwargs)
response = urlopen(
Request('https://pushall.ru/api.php'),
urlencode(params),
timeout=10
)
if response.code != 200:
raise PushAllError(response.read())
json = loads(response.read())
if json.get('error'):
raise PushAllError(json.get('error'))
return True | python | def send(ch, message, **kwargs):
"""
Site: https://pushall.ru
API: https://pushall.ru/blog/api
Desc: App for notification to devices/browsers and messaging apps
"""
params = {
'type': kwargs.pop('req_type', 'self'),
'key': settings.PUSHALL_API_KEYS[ch]['key'],
'id': settings.PUSHALL_API_KEYS[ch]['id'],
'title': kwargs.pop(
"title", settings.PUSHALL_API_KEYS[ch].get('title') or ""),
'text': message,
'priority': kwargs.pop(
"priority", settings.PUSHALL_API_KEYS[ch].get('priority') or "0"),
}
if kwargs:
params.update(**kwargs)
response = urlopen(
Request('https://pushall.ru/api.php'),
urlencode(params),
timeout=10
)
if response.code != 200:
raise PushAllError(response.read())
json = loads(response.read())
if json.get('error'):
raise PushAllError(json.get('error'))
return True | [
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API: https://pushall.ru/blog/api
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LPgenerator/django-db-mailer | dbmail/providers/telegram/bot.py | send | def send(to, message, **kwargs):
"""
SITE: https://github.com/nickoala/telepot
TELEGRAM API: https://core.telegram.org/bots/api
Installation:
pip install 'telepot>=10.4'
"""
available_kwargs_keys = [
'parse_mode',
'disable_web_page_preview',
'disable_notification',
'reply_to_message_id',
'reply_markup'
]
available_kwargs = {
k: v for k, v in kwargs.iteritems() if k in available_kwargs_keys
}
bot = telepot.Bot(settings.TELEGRAM_BOT_TOKEN)
return bot.sendMessage(to, message, **available_kwargs) | python | def send(to, message, **kwargs):
"""
SITE: https://github.com/nickoala/telepot
TELEGRAM API: https://core.telegram.org/bots/api
Installation:
pip install 'telepot>=10.4'
"""
available_kwargs_keys = [
'parse_mode',
'disable_web_page_preview',
'disable_notification',
'reply_to_message_id',
'reply_markup'
]
available_kwargs = {
k: v for k, v in kwargs.iteritems() if k in available_kwargs_keys
}
bot = telepot.Bot(settings.TELEGRAM_BOT_TOKEN)
return bot.sendMessage(to, message, **available_kwargs) | [
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LPgenerator/django-db-mailer | dbmail/providers/google/browser.py | send | def send(reg_id, message, **kwargs):
"""
Site: https://developers.google.com
API: https://developers.google.com/web/updates/2016/03/web-push-encryption
Desc: Web Push notifications for Chrome and FireFox
Installation:
pip install 'pywebpush>=0.4.0'
"""
subscription_info = kwargs.pop('subscription_info')
payload = {
"title": kwargs.pop("event"),
"body": message,
"url": kwargs.pop("push_url", None)
}
payload.update(kwargs)
wp = WebPusher(subscription_info)
response = wp.send(
dumps(payload), gcm_key=settings.GCM_KEY,
ttl=kwargs.pop("ttl", 60))
if not response.ok or (
response.text and loads(response.text).get("failure") > 0):
raise GCMError(response.text)
return True | python | def send(reg_id, message, **kwargs):
"""
Site: https://developers.google.com
API: https://developers.google.com/web/updates/2016/03/web-push-encryption
Desc: Web Push notifications for Chrome and FireFox
Installation:
pip install 'pywebpush>=0.4.0'
"""
subscription_info = kwargs.pop('subscription_info')
payload = {
"title": kwargs.pop("event"),
"body": message,
"url": kwargs.pop("push_url", None)
}
payload.update(kwargs)
wp = WebPusher(subscription_info)
response = wp.send(
dumps(payload), gcm_key=settings.GCM_KEY,
ttl=kwargs.pop("ttl", 60))
if not response.ok or (
response.text and loads(response.text).get("failure") > 0):
raise GCMError(response.text)
return True | [
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LPgenerator/django-db-mailer | dbmail/providers/apple/apns2.py | send | def send(token_hex, message, **kwargs):
"""
Site: https://apple.com
API: https://developer.apple.com
Desc: iOS notifications
Installation and usage:
pip install hyper
"""
priority = kwargs.pop('priority', 10)
topic = kwargs.pop('topic', None)
alert = {
"title": kwargs.pop("event"),
"body": message,
"action": kwargs.pop(
'apns_action', defaults.APNS_PROVIDER_DEFAULT_ACTION)
}
data = {
"aps": {
'alert': alert,
'content-available': kwargs.pop('content_available', 0) and 1
}
}
data['aps'].update(kwargs)
payload = dumps(data, separators=(',', ':'))
headers = {
'apns-priority': priority
}
if topic is not None:
headers['apns-topic'] = topic
ssl_context = init_context()
ssl_context.load_cert_chain(settings.APNS_CERT_FILE)
connection = HTTP20Connection(
settings.APNS_GW_HOST, settings.APNS_GW_PORT, ssl_context=ssl_context)
stream_id = connection.request(
'POST', '/3/device/{}'.format(token_hex), payload, headers)
response = connection.get_response(stream_id)
if response.status != 200:
raise APNsError(response.read())
return True | python | def send(token_hex, message, **kwargs):
"""
Site: https://apple.com
API: https://developer.apple.com
Desc: iOS notifications
Installation and usage:
pip install hyper
"""
priority = kwargs.pop('priority', 10)
topic = kwargs.pop('topic', None)
alert = {
"title": kwargs.pop("event"),
"body": message,
"action": kwargs.pop(
'apns_action', defaults.APNS_PROVIDER_DEFAULT_ACTION)
}
data = {
"aps": {
'alert': alert,
'content-available': kwargs.pop('content_available', 0) and 1
}
}
data['aps'].update(kwargs)
payload = dumps(data, separators=(',', ':'))
headers = {
'apns-priority': priority
}
if topic is not None:
headers['apns-topic'] = topic
ssl_context = init_context()
ssl_context.load_cert_chain(settings.APNS_CERT_FILE)
connection = HTTP20Connection(
settings.APNS_GW_HOST, settings.APNS_GW_PORT, ssl_context=ssl_context)
stream_id = connection.request(
'POST', '/3/device/{}'.format(token_hex), payload, headers)
response = connection.get_response(stream_id)
if response.status != 200:
raise APNsError(response.read())
return True | [
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LPgenerator/django-db-mailer | dbmail/providers/twilio/sms.py | send | def send(sms_to, sms_body, **kwargs):
"""
Site: https://www.twilio.com/
API: https://www.twilio.com/docs/api/rest/sending-messages
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
'Authorization': 'Basic %s' % b64encode(
"%s:%s" % (
settings.TWILIO_ACCOUNT_SID, settings.TWILIO_AUTH_TOKEN
)).decode("ascii")
}
kwargs.update({
'From': kwargs.pop('sms_from', settings.TWILIO_FROM),
'To': sms_to,
'Body': from_unicode(sms_body)
})
http = HTTPSConnection(kwargs.pop("api_url", "api.twilio.com"))
http.request(
"POST",
"/2010-04-01/Accounts/%s/Messages.json" % settings.TWILIO_ACCOUNT_SID,
headers=headers,
body=urlencode(kwargs))
response = http.getresponse()
if response.status != 201:
raise TwilioSmsError(response.reason)
return loads(response.read()).get('sid') | python | def send(sms_to, sms_body, **kwargs):
"""
Site: https://www.twilio.com/
API: https://www.twilio.com/docs/api/rest/sending-messages
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
'Authorization': 'Basic %s' % b64encode(
"%s:%s" % (
settings.TWILIO_ACCOUNT_SID, settings.TWILIO_AUTH_TOKEN
)).decode("ascii")
}
kwargs.update({
'From': kwargs.pop('sms_from', settings.TWILIO_FROM),
'To': sms_to,
'Body': from_unicode(sms_body)
})
http = HTTPSConnection(kwargs.pop("api_url", "api.twilio.com"))
http.request(
"POST",
"/2010-04-01/Accounts/%s/Messages.json" % settings.TWILIO_ACCOUNT_SID,
headers=headers,
body=urlencode(kwargs))
response = http.getresponse()
if response.status != 201:
raise TwilioSmsError(response.reason)
return loads(response.read()).get('sid') | [
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LPgenerator/django-db-mailer | dbmail/providers/pushover/push.py | send | def send(user, message, **kwargs):
"""
Site: https://pushover.net/
API: https://pushover.net/api
Desc: real-time notifications
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
}
title = from_unicode(kwargs.pop("title", settings.PUSHOVER_APP))
message = from_unicode(message)
data = {
"token": settings.PUSHOVER_TOKEN,
"user": user,
"message": message,
"title": title,
"priority": kwargs.pop("priority", 0)
}
_data = kwargs.pop('data', None)
if _data is not None:
data.update(_data)
http = HTTPSConnection(kwargs.pop("api_url", "api.pushover.net"))
http.request(
"POST", "/1/messages.json",
headers=headers,
body=urlencode(data))
response = http.getresponse()
if response.status != 200:
raise PushOverError(response.reason)
body = loads(response.read())
if body.get('status') != 1:
raise PushOverError(repr(body))
return True | python | def send(user, message, **kwargs):
"""
Site: https://pushover.net/
API: https://pushover.net/api
Desc: real-time notifications
"""
headers = {
"Content-type": "application/x-www-form-urlencoded",
"User-Agent": "DBMail/%s" % get_version(),
}
title = from_unicode(kwargs.pop("title", settings.PUSHOVER_APP))
message = from_unicode(message)
data = {
"token": settings.PUSHOVER_TOKEN,
"user": user,
"message": message,
"title": title,
"priority": kwargs.pop("priority", 0)
}
_data = kwargs.pop('data', None)
if _data is not None:
data.update(_data)
http = HTTPSConnection(kwargs.pop("api_url", "api.pushover.net"))
http.request(
"POST", "/1/messages.json",
headers=headers,
body=urlencode(data))
response = http.getresponse()
if response.status != 200:
raise PushOverError(response.reason)
body = loads(response.read())
if body.get('status') != 1:
raise PushOverError(repr(body))
return True | [
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API: https://pushover.net/api
Desc: real-time notifications | [
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LPgenerator/django-db-mailer | dbmail/providers/google/android.py | send | def send(user, message, **kwargs):
"""
Site: https://developers.google.com
API: https://developers.google.com/cloud-messaging/
Desc: Android notifications
"""
headers = {
"Content-type": "application/json",
"Authorization": "key=" + kwargs.pop("gcm_key", settings.GCM_KEY)
}
hook_url = 'https://android.googleapis.com/gcm/send'
data = {
"registration_ids": [user],
"data": {
"title": kwargs.pop("event"),
'message': message,
}
}
data['data'].update(kwargs)
up = urlparse(hook_url)
http = HTTPSConnection(up.netloc)
http.request(
"POST", up.path,
headers=headers,
body=dumps(data))
response = http.getresponse()
if response.status != 200:
raise GCMError(response.reason)
body = response.read()
if loads(body).get("failure") > 0:
raise GCMError(repr(body))
return True | python | def send(user, message, **kwargs):
"""
Site: https://developers.google.com
API: https://developers.google.com/cloud-messaging/
Desc: Android notifications
"""
headers = {
"Content-type": "application/json",
"Authorization": "key=" + kwargs.pop("gcm_key", settings.GCM_KEY)
}
hook_url = 'https://android.googleapis.com/gcm/send'
data = {
"registration_ids": [user],
"data": {
"title": kwargs.pop("event"),
'message': message,
}
}
data['data'].update(kwargs)
up = urlparse(hook_url)
http = HTTPSConnection(up.netloc)
http.request(
"POST", up.path,
headers=headers,
body=dumps(data))
response = http.getresponse()
if response.status != 200:
raise GCMError(response.reason)
body = response.read()
if loads(body).get("failure") > 0:
raise GCMError(repr(body))
return True | [
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API: https://developers.google.com/cloud-messaging/
Desc: Android notifications | [
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g2p/blocks | blocks/__main__.py | rotate_lv | def rotate_lv(*, device, size, debug, forward):
"""Rotate a logical volume by a single PE.
If forward:
Move the first physical extent of an LV to the end
else:
Move the last physical extent of a LV to the start
then poke LVM to refresh the mapping.
"""
import augeas
class Augeas(augeas.Augeas):
def get_int(self, key):
return int(self.get(key + '/int'))
def set_int(self, key, val):
return self.set(key + '/int', '%d' % val)
def incr(self, key, by=1):
orig = self.get_int(key)
self.set_int(key, orig + by)
def decr(self, key):
self.incr(key, by=-1)
lv_info = subprocess.check_output(
'lvm lvs --noheadings --rows --units=b --nosuffix '
'-o vg_name,vg_uuid,lv_name,lv_uuid,lv_attr --'.split()
+ [device.devpath], universal_newlines=True).splitlines()
vgname, vg_uuid, lvname, lv_uuid, lv_attr = (fi.lstrip() for fi in lv_info)
active = lv_attr[4] == 'a'
# Make sure the volume isn't in use by unmapping it
quiet_call(
['lvm', 'lvchange', '-an', '--', '{}/{}'.format(vgname, lvname)])
with tempfile.TemporaryDirectory(suffix='.blocks') as tdname:
vgcfgname = tdname + '/vg.cfg'
print('Loading LVM metadata... ', end='', flush=True)
quiet_call(
['lvm', 'vgcfgbackup', '--file', vgcfgname, '--', vgname])
aug = Augeas(
loadpath=pkg_resources.resource_filename('blocks', 'augeas'),
root='/dev/null',
flags=augeas.Augeas.NO_MODL_AUTOLOAD | augeas.Augeas.SAVE_NEWFILE)
vgcfg = open(vgcfgname)
vgcfg_orig = vgcfg.read()
aug.set('/raw/vgcfg', vgcfg_orig)
aug.text_store('LVM.lns', '/raw/vgcfg', '/vg')
print('ok')
# There is no easy way to quote for XPath, so whitelist
assert all(ch in ASCII_ALNUM_WHITELIST for ch in vgname), vgname
assert all(ch in ASCII_ALNUM_WHITELIST for ch in lvname), lvname
aug.defvar('vg', '/vg/{}/dict'.format(vgname))
assert aug.get('$vg/id/str') == vg_uuid
aug.defvar('lv', '$vg/logical_volumes/dict/{}/dict'.format(lvname))
assert aug.get('$lv/id/str') == lv_uuid
rotate_aug(aug, forward, size)
aug.text_retrieve('LVM.lns', '/raw/vgcfg', '/vg', '/raw/vgcfg.new')
open(vgcfgname + '.new', 'w').write(aug.get('/raw/vgcfg.new'))
rotate_aug(aug, not forward, size)
aug.text_retrieve('LVM.lns', '/raw/vgcfg', '/vg', '/raw/vgcfg.backagain')
open(vgcfgname + '.backagain', 'w').write(aug.get('/raw/vgcfg.backagain'))
if debug:
print('CHECK STABILITY')
subprocess.call(
['git', '--no-pager', 'diff', '--no-index', '--patience', '--color-words',
'--', vgcfgname, vgcfgname + '.backagain'])
if forward:
print('CHECK CORRECTNESS (forward)')
else:
print('CHECK CORRECTNESS (backward)')
subprocess.call(
['git', '--no-pager', 'diff', '--no-index', '--patience', '--color-words',
'--', vgcfgname, vgcfgname + '.new'])
if forward:
print(
'Rotating the second extent to be the first... ',
end='', flush=True)
else:
print(
'Rotating the last extent to be the first... ',
end='', flush=True)
quiet_call(
['lvm', 'vgcfgrestore', '--file', vgcfgname + '.new', '--', vgname])
# Make sure LVM updates the mapping, this is pretty critical
quiet_call(
['lvm', 'lvchange', '--refresh', '--', '{}/{}'.format(vgname, lvname)])
if active:
quiet_call(
['lvm', 'lvchange', '-ay', '--', '{}/{}'.format(vgname, lvname)])
print('ok') | python | def rotate_lv(*, device, size, debug, forward):
"""Rotate a logical volume by a single PE.
If forward:
Move the first physical extent of an LV to the end
else:
Move the last physical extent of a LV to the start
then poke LVM to refresh the mapping.
"""
import augeas
class Augeas(augeas.Augeas):
def get_int(self, key):
return int(self.get(key + '/int'))
def set_int(self, key, val):
return self.set(key + '/int', '%d' % val)
def incr(self, key, by=1):
orig = self.get_int(key)
self.set_int(key, orig + by)
def decr(self, key):
self.incr(key, by=-1)
lv_info = subprocess.check_output(
'lvm lvs --noheadings --rows --units=b --nosuffix '
'-o vg_name,vg_uuid,lv_name,lv_uuid,lv_attr --'.split()
+ [device.devpath], universal_newlines=True).splitlines()
vgname, vg_uuid, lvname, lv_uuid, lv_attr = (fi.lstrip() for fi in lv_info)
active = lv_attr[4] == 'a'
# Make sure the volume isn't in use by unmapping it
quiet_call(
['lvm', 'lvchange', '-an', '--', '{}/{}'.format(vgname, lvname)])
with tempfile.TemporaryDirectory(suffix='.blocks') as tdname:
vgcfgname = tdname + '/vg.cfg'
print('Loading LVM metadata... ', end='', flush=True)
quiet_call(
['lvm', 'vgcfgbackup', '--file', vgcfgname, '--', vgname])
aug = Augeas(
loadpath=pkg_resources.resource_filename('blocks', 'augeas'),
root='/dev/null',
flags=augeas.Augeas.NO_MODL_AUTOLOAD | augeas.Augeas.SAVE_NEWFILE)
vgcfg = open(vgcfgname)
vgcfg_orig = vgcfg.read()
aug.set('/raw/vgcfg', vgcfg_orig)
aug.text_store('LVM.lns', '/raw/vgcfg', '/vg')
print('ok')
# There is no easy way to quote for XPath, so whitelist
assert all(ch in ASCII_ALNUM_WHITELIST for ch in vgname), vgname
assert all(ch in ASCII_ALNUM_WHITELIST for ch in lvname), lvname
aug.defvar('vg', '/vg/{}/dict'.format(vgname))
assert aug.get('$vg/id/str') == vg_uuid
aug.defvar('lv', '$vg/logical_volumes/dict/{}/dict'.format(lvname))
assert aug.get('$lv/id/str') == lv_uuid
rotate_aug(aug, forward, size)
aug.text_retrieve('LVM.lns', '/raw/vgcfg', '/vg', '/raw/vgcfg.new')
open(vgcfgname + '.new', 'w').write(aug.get('/raw/vgcfg.new'))
rotate_aug(aug, not forward, size)
aug.text_retrieve('LVM.lns', '/raw/vgcfg', '/vg', '/raw/vgcfg.backagain')
open(vgcfgname + '.backagain', 'w').write(aug.get('/raw/vgcfg.backagain'))
if debug:
print('CHECK STABILITY')
subprocess.call(
['git', '--no-pager', 'diff', '--no-index', '--patience', '--color-words',
'--', vgcfgname, vgcfgname + '.backagain'])
if forward:
print('CHECK CORRECTNESS (forward)')
else:
print('CHECK CORRECTNESS (backward)')
subprocess.call(
['git', '--no-pager', 'diff', '--no-index', '--patience', '--color-words',
'--', vgcfgname, vgcfgname + '.new'])
if forward:
print(
'Rotating the second extent to be the first... ',
end='', flush=True)
else:
print(
'Rotating the last extent to be the first... ',
end='', flush=True)
quiet_call(
['lvm', 'vgcfgrestore', '--file', vgcfgname + '.new', '--', vgname])
# Make sure LVM updates the mapping, this is pretty critical
quiet_call(
['lvm', 'lvchange', '--refresh', '--', '{}/{}'.format(vgname, lvname)])
if active:
quiet_call(
['lvm', 'lvchange', '-ay', '--', '{}/{}'.format(vgname, lvname)])
print('ok') | [
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If forward:
Move the first physical extent of an LV to the end
else:
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then poke LVM to refresh the mapping. | [
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jaseg/python-mpv | mpv.py | _mpv_coax_proptype | def _mpv_coax_proptype(value, proptype=str):
"""Intelligently coax the given python value into something that can be understood as a proptype property."""
if type(value) is bytes:
return value;
elif type(value) is bool:
return b'yes' if value else b'no'
elif proptype in (str, int, float):
return str(proptype(value)).encode('utf-8')
else:
raise TypeError('Cannot coax value of type {} into property type {}'.format(type(value), proptype)) | python | def _mpv_coax_proptype(value, proptype=str):
"""Intelligently coax the given python value into something that can be understood as a proptype property."""
if type(value) is bytes:
return value;
elif type(value) is bool:
return b'yes' if value else b'no'
elif proptype in (str, int, float):
return str(proptype(value)).encode('utf-8')
else:
raise TypeError('Cannot coax value of type {} into property type {}'.format(type(value), proptype)) | [
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jaseg/python-mpv | mpv.py | _make_node_str_list | def _make_node_str_list(l):
"""Take a list of python objects and make a MPV string node array from it.
As an example, the python list ``l = [ "foo", 23, false ]`` will result in the following MPV node object::
struct mpv_node {
.format = MPV_NODE_ARRAY,
.u.list = *(struct mpv_node_array){
.num = len(l),
.keys = NULL,
.values = struct mpv_node[len(l)] {
{ .format = MPV_NODE_STRING, .u.string = l[0] },
{ .format = MPV_NODE_STRING, .u.string = l[1] },
...
}
}
}
"""
char_ps = [ c_char_p(_mpv_coax_proptype(e, str)) for e in l ]
node_list = MpvNodeList(
num=len(l),
keys=None,
values=( MpvNode * len(l))( *[ MpvNode(
format=MpvFormat.STRING,
val=MpvNodeUnion(string=p))
for p in char_ps ]))
node = MpvNode(
format=MpvFormat.NODE_ARRAY,
val=MpvNodeUnion(list=pointer(node_list)))
return char_ps, node_list, node, cast(pointer(node), c_void_p) | python | def _make_node_str_list(l):
"""Take a list of python objects and make a MPV string node array from it.
As an example, the python list ``l = [ "foo", 23, false ]`` will result in the following MPV node object::
struct mpv_node {
.format = MPV_NODE_ARRAY,
.u.list = *(struct mpv_node_array){
.num = len(l),
.keys = NULL,
.values = struct mpv_node[len(l)] {
{ .format = MPV_NODE_STRING, .u.string = l[0] },
{ .format = MPV_NODE_STRING, .u.string = l[1] },
...
}
}
}
"""
char_ps = [ c_char_p(_mpv_coax_proptype(e, str)) for e in l ]
node_list = MpvNodeList(
num=len(l),
keys=None,
values=( MpvNode * len(l))( *[ MpvNode(
format=MpvFormat.STRING,
val=MpvNodeUnion(string=p))
for p in char_ps ]))
node = MpvNode(
format=MpvFormat.NODE_ARRAY,
val=MpvNodeUnion(list=pointer(node_list)))
return char_ps, node_list, node, cast(pointer(node), c_void_p) | [
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}
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jaseg/python-mpv | mpv.py | MPV.wait_for_property | def wait_for_property(self, name, cond=lambda val: val, level_sensitive=True):
"""Waits until ``cond`` evaluates to a truthy value on the named property. This can be used to wait for
properties such as ``idle_active`` indicating the player is done with regular playback and just idling around
"""
sema = threading.Semaphore(value=0)
def observer(name, val):
if cond(val):
sema.release()
self.observe_property(name, observer)
if not level_sensitive or not cond(getattr(self, name.replace('-', '_'))):
sema.acquire()
self.unobserve_property(name, observer) | python | def wait_for_property(self, name, cond=lambda val: val, level_sensitive=True):
"""Waits until ``cond`` evaluates to a truthy value on the named property. This can be used to wait for
properties such as ``idle_active`` indicating the player is done with regular playback and just idling around
"""
sema = threading.Semaphore(value=0)
def observer(name, val):
if cond(val):
sema.release()
self.observe_property(name, observer)
if not level_sensitive or not cond(getattr(self, name.replace('-', '_'))):
sema.acquire()
self.unobserve_property(name, observer) | [
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jaseg/python-mpv | mpv.py | MPV.terminate | def terminate(self):
"""Properly terminates this player instance. Preferably use this instead of relying on python's garbage
collector to cause this to be called from the object's destructor.
"""
self.handle, handle = None, self.handle
if threading.current_thread() is self._event_thread:
# Handle special case to allow event handle to be detached.
# This is necessary since otherwise the event thread would deadlock itself.
grim_reaper = threading.Thread(target=lambda: _mpv_terminate_destroy(handle))
grim_reaper.start()
else:
_mpv_terminate_destroy(handle)
if self._event_thread:
self._event_thread.join() | python | def terminate(self):
"""Properly terminates this player instance. Preferably use this instead of relying on python's garbage
collector to cause this to be called from the object's destructor.
"""
self.handle, handle = None, self.handle
if threading.current_thread() is self._event_thread:
# Handle special case to allow event handle to be detached.
# This is necessary since otherwise the event thread would deadlock itself.
grim_reaper = threading.Thread(target=lambda: _mpv_terminate_destroy(handle))
grim_reaper.start()
else:
_mpv_terminate_destroy(handle)
if self._event_thread:
self._event_thread.join() | [
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jaseg/python-mpv | mpv.py | MPV.command | def command(self, name, *args):
"""Execute a raw command."""
args = [name.encode('utf-8')] + [ (arg if type(arg) is bytes else str(arg).encode('utf-8'))
for arg in args if arg is not None ] + [None]
_mpv_command(self.handle, (c_char_p*len(args))(*args)) | python | def command(self, name, *args):
"""Execute a raw command."""
args = [name.encode('utf-8')] + [ (arg if type(arg) is bytes else str(arg).encode('utf-8'))
for arg in args if arg is not None ] + [None]
_mpv_command(self.handle, (c_char_p*len(args))(*args)) | [
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jaseg/python-mpv | mpv.py | MPV.seek | def seek(self, amount, reference="relative", precision="default-precise"):
"""Mapped mpv seek command, see man mpv(1)."""
self.command('seek', amount, reference, precision) | python | def seek(self, amount, reference="relative", precision="default-precise"):
"""Mapped mpv seek command, see man mpv(1)."""
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jaseg/python-mpv | mpv.py | MPV.screenshot_to_file | def screenshot_to_file(self, filename, includes='subtitles'):
"""Mapped mpv screenshot_to_file command, see man mpv(1)."""
self.command('screenshot_to_file', filename.encode(fs_enc), includes) | python | def screenshot_to_file(self, filename, includes='subtitles'):
"""Mapped mpv screenshot_to_file command, see man mpv(1)."""
self.command('screenshot_to_file', filename.encode(fs_enc), includes) | [
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jaseg/python-mpv | mpv.py | MPV.screenshot_raw | def screenshot_raw(self, includes='subtitles'):
"""Mapped mpv screenshot_raw command, see man mpv(1). Returns a pillow Image object."""
from PIL import Image
res = self.node_command('screenshot-raw', includes)
if res['format'] != 'bgr0':
raise ValueError('Screenshot in unknown format "{}". Currently, only bgr0 is supported.'
.format(res['format']))
img = Image.frombytes('RGBA', (res['w'], res['h']), res['data'])
b,g,r,a = img.split()
return Image.merge('RGB', (r,g,b)) | python | def screenshot_raw(self, includes='subtitles'):
"""Mapped mpv screenshot_raw command, see man mpv(1). Returns a pillow Image object."""
from PIL import Image
res = self.node_command('screenshot-raw', includes)
if res['format'] != 'bgr0':
raise ValueError('Screenshot in unknown format "{}". Currently, only bgr0 is supported.'
.format(res['format']))
img = Image.frombytes('RGBA', (res['w'], res['h']), res['data'])
b,g,r,a = img.split()
return Image.merge('RGB', (r,g,b)) | [
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jaseg/python-mpv | mpv.py | MPV.loadfile | def loadfile(self, filename, mode='replace', **options):
"""Mapped mpv loadfile command, see man mpv(1)."""
self.command('loadfile', filename.encode(fs_enc), mode, MPV._encode_options(options)) | python | def loadfile(self, filename, mode='replace', **options):
"""Mapped mpv loadfile command, see man mpv(1)."""
self.command('loadfile', filename.encode(fs_enc), mode, MPV._encode_options(options)) | [
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jaseg/python-mpv | mpv.py | MPV.loadlist | def loadlist(self, playlist, mode='replace'):
"""Mapped mpv loadlist command, see man mpv(1)."""
self.command('loadlist', playlist.encode(fs_enc), mode) | python | def loadlist(self, playlist, mode='replace'):
"""Mapped mpv loadlist command, see man mpv(1)."""
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jaseg/python-mpv | mpv.py | MPV.overlay_add | def overlay_add(self, overlay_id, x, y, file_or_fd, offset, fmt, w, h, stride):
"""Mapped mpv overlay_add command, see man mpv(1)."""
self.command('overlay_add', overlay_id, x, y, file_or_fd, offset, fmt, w, h, stride) | python | def overlay_add(self, overlay_id, x, y, file_or_fd, offset, fmt, w, h, stride):
"""Mapped mpv overlay_add command, see man mpv(1)."""
self.command('overlay_add', overlay_id, x, y, file_or_fd, offset, fmt, w, h, stride) | [
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jaseg/python-mpv | mpv.py | MPV.observe_property | def observe_property(self, name, handler):
"""Register an observer on the named property. An observer is a function that is called with the new property
value every time the property's value is changed. The basic function signature is ``fun(property_name,
new_value)`` with new_value being the decoded property value as a python object. This function can be used as a
function decorator if no handler is given.
To unregister the observer, call either of ``mpv.unobserve_property(name, handler)``,
``mpv.unobserve_all_properties(handler)`` or the handler's ``unregister_mpv_properties`` attribute::
@player.observe_property('volume')
def my_handler(new_volume, *):
print("It's loud!", volume)
my_handler.unregister_mpv_properties()
"""
self._property_handlers[name].append(handler)
_mpv_observe_property(self._event_handle, hash(name)&0xffffffffffffffff, name.encode('utf-8'), MpvFormat.NODE) | python | def observe_property(self, name, handler):
"""Register an observer on the named property. An observer is a function that is called with the new property
value every time the property's value is changed. The basic function signature is ``fun(property_name,
new_value)`` with new_value being the decoded property value as a python object. This function can be used as a
function decorator if no handler is given.
To unregister the observer, call either of ``mpv.unobserve_property(name, handler)``,
``mpv.unobserve_all_properties(handler)`` or the handler's ``unregister_mpv_properties`` attribute::
@player.observe_property('volume')
def my_handler(new_volume, *):
print("It's loud!", volume)
my_handler.unregister_mpv_properties()
"""
self._property_handlers[name].append(handler)
_mpv_observe_property(self._event_handle, hash(name)&0xffffffffffffffff, name.encode('utf-8'), MpvFormat.NODE) | [
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def my_handler(new_volume, *):
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jaseg/python-mpv | mpv.py | MPV.property_observer | def property_observer(self, name):
"""Function decorator to register a property observer. See ``MPV.observe_property`` for details."""
def wrapper(fun):
self.observe_property(name, fun)
fun.unobserve_mpv_properties = lambda: self.unobserve_property(name, fun)
return fun
return wrapper | python | def property_observer(self, name):
"""Function decorator to register a property observer. See ``MPV.observe_property`` for details."""
def wrapper(fun):
self.observe_property(name, fun)
fun.unobserve_mpv_properties = lambda: self.unobserve_property(name, fun)
return fun
return wrapper | [
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jaseg/python-mpv | mpv.py | MPV.unobserve_property | def unobserve_property(self, name, handler):
"""Unregister a property observer. This requires both the observed property's name and the handler function that
was originally registered as one handler could be registered for several properties. To unregister a handler
from *all* observed properties see ``unobserve_all_properties``.
"""
self._property_handlers[name].remove(handler)
if not self._property_handlers[name]:
_mpv_unobserve_property(self._event_handle, hash(name)&0xffffffffffffffff) | python | def unobserve_property(self, name, handler):
"""Unregister a property observer. This requires both the observed property's name and the handler function that
was originally registered as one handler could be registered for several properties. To unregister a handler
from *all* observed properties see ``unobserve_all_properties``.
"""
self._property_handlers[name].remove(handler)
if not self._property_handlers[name]:
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jaseg/python-mpv | mpv.py | MPV.unobserve_all_properties | def unobserve_all_properties(self, handler):
"""Unregister a property observer from *all* observed properties."""
for name in self._property_handlers:
self.unobserve_property(name, handler) | python | def unobserve_all_properties(self, handler):
"""Unregister a property observer from *all* observed properties."""
for name in self._property_handlers:
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jaseg/python-mpv | mpv.py | MPV.unregister_message_handler | def unregister_message_handler(self, target_or_handler):
"""Unregister a mpv script message handler for the given script message target name.
You can also call the ``unregister_mpv_messages`` function attribute set on the handler function when it is
registered.
"""
if isinstance(target_or_handler, str):
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if val == target_or_handler:
del self._message_handlers[key] | python | def unregister_message_handler(self, target_or_handler):
"""Unregister a mpv script message handler for the given script message target name.
You can also call the ``unregister_mpv_messages`` function attribute set on the handler function when it is
registered.
"""
if isinstance(target_or_handler, str):
del self._message_handlers[target_or_handler]
else:
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if val == target_or_handler:
del self._message_handlers[key] | [
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jaseg/python-mpv | mpv.py | MPV.message_handler | def message_handler(self, target):
"""Decorator to register a mpv script message handler.
WARNING: Only one handler can be registered at a time for any given target.
To unregister the message handler, call its ``unregister_mpv_messages`` function::
player = mpv.MPV()
@player.message_handler('foo')
def my_handler(some, args):
print(args)
my_handler.unregister_mpv_messages()
"""
def register(handler):
self._register_message_handler_internal(target, handler)
handler.unregister_mpv_messages = lambda: self.unregister_message_handler(handler)
return handler
return register | python | def message_handler(self, target):
"""Decorator to register a mpv script message handler.
WARNING: Only one handler can be registered at a time for any given target.
To unregister the message handler, call its ``unregister_mpv_messages`` function::
player = mpv.MPV()
@player.message_handler('foo')
def my_handler(some, args):
print(args)
my_handler.unregister_mpv_messages()
"""
def register(handler):
self._register_message_handler_internal(target, handler)
handler.unregister_mpv_messages = lambda: self.unregister_message_handler(handler)
return handler
return register | [
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player = mpv.MPV()
@player.message_handler('foo')
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jaseg/python-mpv | mpv.py | MPV.event_callback | def event_callback(self, *event_types):
"""Function decorator to register a blanket event callback for the given event types. Event types can be given
as str (e.g. 'start-file'), integer or MpvEventID object.
WARNING: Due to the way this is filtering events, this decorator cannot be chained with itself.
To unregister the event callback, call its ``unregister_mpv_events`` function::
player = mpv.MPV()
@player.event_callback('shutdown')
def my_handler(event):
print('It ded.')
my_handler.unregister_mpv_events()
"""
def register(callback):
types = [MpvEventID.from_str(t) if isinstance(t, str) else t for t in event_types] or MpvEventID.ANY
@wraps(callback)
def wrapper(event, *args, **kwargs):
if event['event_id'] in types:
callback(event, *args, **kwargs)
self._event_callbacks.append(wrapper)
wrapper.unregister_mpv_events = partial(self.unregister_event_callback, wrapper)
return wrapper
return register | python | def event_callback(self, *event_types):
"""Function decorator to register a blanket event callback for the given event types. Event types can be given
as str (e.g. 'start-file'), integer or MpvEventID object.
WARNING: Due to the way this is filtering events, this decorator cannot be chained with itself.
To unregister the event callback, call its ``unregister_mpv_events`` function::
player = mpv.MPV()
@player.event_callback('shutdown')
def my_handler(event):
print('It ded.')
my_handler.unregister_mpv_events()
"""
def register(callback):
types = [MpvEventID.from_str(t) if isinstance(t, str) else t for t in event_types] or MpvEventID.ANY
@wraps(callback)
def wrapper(event, *args, **kwargs):
if event['event_id'] in types:
callback(event, *args, **kwargs)
self._event_callbacks.append(wrapper)
wrapper.unregister_mpv_events = partial(self.unregister_event_callback, wrapper)
return wrapper
return register | [
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jaseg/python-mpv | mpv.py | MPV.on_key_press | def on_key_press(self, keydef, mode='force'):
"""Function decorator to register a simplified key binding. The callback is called whenever the key given is
*pressed*.
To unregister the callback function, you can call its ``unregister_mpv_key_bindings`` attribute::
player = mpv.MPV()
@player.on_key_press('Q')
def binding():
print('blep')
binding.unregister_mpv_key_bindings()
WARNING: For a single keydef only a single callback/command can be registered at the same time. If you register
a binding multiple times older bindings will be overwritten and there is a possibility of references leaking. So
don't do that.
The BIG FAT WARNING regarding untrusted keydefs from the key_binding method applies here as well.
"""
def register(fun):
@self.key_binding(keydef, mode)
@wraps(fun)
def wrapper(state='p-', name=None):
if state[0] in ('d', 'p'):
fun()
return wrapper
return register | python | def on_key_press(self, keydef, mode='force'):
"""Function decorator to register a simplified key binding. The callback is called whenever the key given is
*pressed*.
To unregister the callback function, you can call its ``unregister_mpv_key_bindings`` attribute::
player = mpv.MPV()
@player.on_key_press('Q')
def binding():
print('blep')
binding.unregister_mpv_key_bindings()
WARNING: For a single keydef only a single callback/command can be registered at the same time. If you register
a binding multiple times older bindings will be overwritten and there is a possibility of references leaking. So
don't do that.
The BIG FAT WARNING regarding untrusted keydefs from the key_binding method applies here as well.
"""
def register(fun):
@self.key_binding(keydef, mode)
@wraps(fun)
def wrapper(state='p-', name=None):
if state[0] in ('d', 'p'):
fun()
return wrapper
return register | [
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jaseg/python-mpv | mpv.py | MPV.key_binding | def key_binding(self, keydef, mode='force'):
"""Function decorator to register a low-level key binding.
The callback function signature is ``fun(key_state, key_name)`` where ``key_state`` is either ``'U'`` for "key
up" or ``'D'`` for "key down".
The keydef format is: ``[Shift+][Ctrl+][Alt+][Meta+]<key>`` where ``<key>`` is either the literal character the
key produces (ASCII or Unicode character), or a symbolic name (as printed by ``mpv --input-keylist``).
To unregister the callback function, you can call its ``unregister_mpv_key_bindings`` attribute::
player = mpv.MPV()
@player.key_binding('Q')
def binding(state, name):
print('blep')
binding.unregister_mpv_key_bindings()
WARNING: For a single keydef only a single callback/command can be registered at the same time. If you register
a binding multiple times older bindings will be overwritten and there is a possibility of references leaking. So
don't do that.
BIG FAT WARNING: mpv's key binding mechanism is pretty powerful. This means, you essentially get arbitrary code
exectution through key bindings. This interface makes some limited effort to sanitize the keydef given in the
first parameter, but YOU SHOULD NOT RELY ON THIS IN FOR SECURITY. If your input comes from config files, this is
completely fine--but, if you are about to pass untrusted input into this parameter, better double-check whether
this is secure in your case.
"""
def register(fun):
fun.mpv_key_bindings = getattr(fun, 'mpv_key_bindings', []) + [keydef]
def unregister_all():
for keydef in fun.mpv_key_bindings:
self.unregister_key_binding(keydef)
fun.unregister_mpv_key_bindings = unregister_all
self.register_key_binding(keydef, fun, mode)
return fun
return register | python | def key_binding(self, keydef, mode='force'):
"""Function decorator to register a low-level key binding.
The callback function signature is ``fun(key_state, key_name)`` where ``key_state`` is either ``'U'`` for "key
up" or ``'D'`` for "key down".
The keydef format is: ``[Shift+][Ctrl+][Alt+][Meta+]<key>`` where ``<key>`` is either the literal character the
key produces (ASCII or Unicode character), or a symbolic name (as printed by ``mpv --input-keylist``).
To unregister the callback function, you can call its ``unregister_mpv_key_bindings`` attribute::
player = mpv.MPV()
@player.key_binding('Q')
def binding(state, name):
print('blep')
binding.unregister_mpv_key_bindings()
WARNING: For a single keydef only a single callback/command can be registered at the same time. If you register
a binding multiple times older bindings will be overwritten and there is a possibility of references leaking. So
don't do that.
BIG FAT WARNING: mpv's key binding mechanism is pretty powerful. This means, you essentially get arbitrary code
exectution through key bindings. This interface makes some limited effort to sanitize the keydef given in the
first parameter, but YOU SHOULD NOT RELY ON THIS IN FOR SECURITY. If your input comes from config files, this is
completely fine--but, if you are about to pass untrusted input into this parameter, better double-check whether
this is secure in your case.
"""
def register(fun):
fun.mpv_key_bindings = getattr(fun, 'mpv_key_bindings', []) + [keydef]
def unregister_all():
for keydef in fun.mpv_key_bindings:
self.unregister_key_binding(keydef)
fun.unregister_mpv_key_bindings = unregister_all
self.register_key_binding(keydef, fun, mode)
return fun
return register | [
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The keydef format is: ``[Shift+][Ctrl+][Alt+][Meta+]<key>`` where ``<key>`` is either the literal character the
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print('blep')
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jaseg/python-mpv | mpv.py | MPV.register_key_binding | def register_key_binding(self, keydef, callback_or_cmd, mode='force'):
"""Register a key binding. This takes an mpv keydef and either a string containing a mpv command or a python
callback function. See ``MPV.key_binding`` for details.
"""
if not re.match(r'(Shift+)?(Ctrl+)?(Alt+)?(Meta+)?(.|\w+)', keydef):
raise ValueError('Invalid keydef. Expected format: [Shift+][Ctrl+][Alt+][Meta+]<key>\n'
'<key> is either the literal character the key produces (ASCII or Unicode character), or a '
'symbolic name (as printed by --input-keylist')
binding_name = MPV._binding_name(keydef)
if callable(callback_or_cmd):
self._key_binding_handlers[binding_name] = callback_or_cmd
self.register_message_handler('key-binding', self._handle_key_binding_message)
self.command('define-section',
binding_name, '{} script-binding py_event_handler/{}'.format(keydef, binding_name), mode)
elif isinstance(callback_or_cmd, str):
self.command('define-section', binding_name, '{} {}'.format(keydef, callback_or_cmd), mode)
else:
raise TypeError('register_key_binding expects either an str with an mpv command or a python callable.')
self.command('enable-section', binding_name, 'allow-hide-cursor+allow-vo-dragging') | python | def register_key_binding(self, keydef, callback_or_cmd, mode='force'):
"""Register a key binding. This takes an mpv keydef and either a string containing a mpv command or a python
callback function. See ``MPV.key_binding`` for details.
"""
if not re.match(r'(Shift+)?(Ctrl+)?(Alt+)?(Meta+)?(.|\w+)', keydef):
raise ValueError('Invalid keydef. Expected format: [Shift+][Ctrl+][Alt+][Meta+]<key>\n'
'<key> is either the literal character the key produces (ASCII or Unicode character), or a '
'symbolic name (as printed by --input-keylist')
binding_name = MPV._binding_name(keydef)
if callable(callback_or_cmd):
self._key_binding_handlers[binding_name] = callback_or_cmd
self.register_message_handler('key-binding', self._handle_key_binding_message)
self.command('define-section',
binding_name, '{} script-binding py_event_handler/{}'.format(keydef, binding_name), mode)
elif isinstance(callback_or_cmd, str):
self.command('define-section', binding_name, '{} {}'.format(keydef, callback_or_cmd), mode)
else:
raise TypeError('register_key_binding expects either an str with an mpv command or a python callable.')
self.command('enable-section', binding_name, 'allow-hide-cursor+allow-vo-dragging') | [
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jaseg/python-mpv | mpv.py | MPV.unregister_key_binding | def unregister_key_binding(self, keydef):
"""Unregister a key binding by keydef."""
binding_name = MPV._binding_name(keydef)
self.command('disable-section', binding_name)
self.command('define-section', binding_name, '')
if binding_name in self._key_binding_handlers:
del self._key_binding_handlers[binding_name]
if not self._key_binding_handlers:
self.unregister_message_handler('key-binding') | python | def unregister_key_binding(self, keydef):
"""Unregister a key binding by keydef."""
binding_name = MPV._binding_name(keydef)
self.command('disable-section', binding_name)
self.command('define-section', binding_name, '')
if binding_name in self._key_binding_handlers:
del self._key_binding_handlers[binding_name]
if not self._key_binding_handlers:
self.unregister_message_handler('key-binding') | [
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lwcolton/falcon-cors | src/falcon_cors/__init__.py | CORS._process_origin | def _process_origin(self, req, resp, origin):
"""Inspects the request and adds the Access-Control-Allow-Origin
header if the requested origin is allowed.
Returns:
``True`` if the header was added and the requested origin
is allowed, ``False`` if the origin is not allowed and the
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"""
if self._cors_config['allow_all_origins']:
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self._set_allow_origin(resp, origin)
else:
self._set_allow_origin(resp, '*')
return True
if origin in self._cors_config['allow_origins_list']:
self._set_allow_origin(resp, origin)
return True
regex = self._cors_config['allow_origins_regex']
if regex is not None:
if regex.match(origin):
self._set_allow_origin(resp, origin)
return True
return False | python | def _process_origin(self, req, resp, origin):
"""Inspects the request and adds the Access-Control-Allow-Origin
header if the requested origin is allowed.
Returns:
``True`` if the header was added and the requested origin
is allowed, ``False`` if the origin is not allowed and the
header has not been added.
"""
if self._cors_config['allow_all_origins']:
if self.supports_credentials:
self._set_allow_origin(resp, origin)
else:
self._set_allow_origin(resp, '*')
return True
if origin in self._cors_config['allow_origins_list']:
self._set_allow_origin(resp, origin)
return True
regex = self._cors_config['allow_origins_regex']
if regex is not None:
if regex.match(origin):
self._set_allow_origin(resp, origin)
return True
return False | [
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lwcolton/falcon-cors | src/falcon_cors/__init__.py | CORS._process_allow_headers | def _process_allow_headers(self, req, resp, requested_headers):
"""Adds the Access-Control-Allow-Headers header to the response,
using the cors settings to determine which headers are allowed.
Returns:
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return True
return False | python | def _process_allow_headers(self, req, resp, requested_headers):
"""Adds the Access-Control-Allow-Headers header to the response,
using the cors settings to determine which headers are allowed.
Returns:
True if all the headers the client requested are allowed.
False if some or none of the headers the client requested are allowed.
"""
if not requested_headers:
return True
elif self._cors_config['allow_all_headers']:
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return True
approved_headers = []
for header in requested_headers:
if header.lower() in self._cors_config['allow_headers_list']:
approved_headers.append(header)
elif self._cors_config.get('allow_headers_regex'):
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if len(approved_headers) == len(requested_headers):
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return True
return False | [
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] | train | https://github.com/lwcolton/falcon-cors/blob/9e1243829078e4c6f8fb8bb895b5cad62bce9d6b/src/falcon_cors/__init__.py#L331-L357 |
lwcolton/falcon-cors | src/falcon_cors/__init__.py | CORS._process_methods | def _process_methods(self, req, resp, resource):
"""Adds the Access-Control-Allow-Methods header to the response,
using the cors settings to determine which methods are allowed.
"""
requested_method = self._get_requested_method(req)
if not requested_method:
return False
if self._cors_config['allow_all_methods']:
allowed_methods = self._get_resource_methods(resource)
self._set_allowed_methods(resp, allowed_methods)
if requested_method in allowed_methods:
return True
elif requested_method in self._cors_config['allow_methods_list']:
resource_methods = self._get_resource_methods(resource)
# Only list methods as allowed if they exist
# on the resource AND are in the allowed_methods_list
allowed_methods = [
method for method in resource_methods
if method in self._cors_config['allow_methods_list']
]
self._set_allowed_methods(resp, allowed_methods)
if requested_method in allowed_methods:
return True
return False | python | def _process_methods(self, req, resp, resource):
"""Adds the Access-Control-Allow-Methods header to the response,
using the cors settings to determine which methods are allowed.
"""
requested_method = self._get_requested_method(req)
if not requested_method:
return False
if self._cors_config['allow_all_methods']:
allowed_methods = self._get_resource_methods(resource)
self._set_allowed_methods(resp, allowed_methods)
if requested_method in allowed_methods:
return True
elif requested_method in self._cors_config['allow_methods_list']:
resource_methods = self._get_resource_methods(resource)
# Only list methods as allowed if they exist
# on the resource AND are in the allowed_methods_list
allowed_methods = [
method for method in resource_methods
if method in self._cors_config['allow_methods_list']
]
self._set_allowed_methods(resp, allowed_methods)
if requested_method in allowed_methods:
return True
return False | [
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