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WorkingSet.find | (self, req) | Find a distribution matching requirement `req`
If there is an active distribution for the requested project, this
returns it as long as it meets the version requirement specified by
`req`. But, if there is an active distribution for the project and it
does *not* meet the `req` requirement, ``VersionConflict`` is raised.
If there is no active distribution for the requested project, ``None``
is returned.
| Find a distribution matching requirement `req` | def find(self, req):
"""Find a distribution matching requirement `req`
If there is an active distribution for the requested project, this
returns it as long as it meets the version requirement specified by
`req`. But, if there is an active distribution for the project and it
does *not* meet the `req` requirement, ``VersionConflict`` is raised.
If there is no active distribution for the requested project, ``None``
is returned.
"""
dist = self.by_key.get(req.key)
if dist is not None and dist not in req:
# XXX add more info
raise VersionConflict(dist, req)
return dist | [
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] | python | en | ['en', 'en', 'en'] | True |
WorkingSet.iter_entry_points | (self, group, name=None) | Yield entry point objects from `group` matching `name`
If `name` is None, yields all entry points in `group` from all
distributions in the working set, otherwise only ones matching
both `group` and `name` are yielded (in distribution order).
| Yield entry point objects from `group` matching `name` | def iter_entry_points(self, group, name=None):
"""Yield entry point objects from `group` matching `name`
If `name` is None, yields all entry points in `group` from all
distributions in the working set, otherwise only ones matching
both `group` and `name` are yielded (in distribution order).
"""
return (
entry
for dist in self
for entry in dist.get_entry_map(group).values()
if name is None or name == entry.name
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WorkingSet.run_script | (self, requires, script_name) | Locate distribution for `requires` and run `script_name` script | Locate distribution for `requires` and run `script_name` script | def run_script(self, requires, script_name):
"""Locate distribution for `requires` and run `script_name` script"""
ns = sys._getframe(1).f_globals
name = ns['__name__']
ns.clear()
ns['__name__'] = name
self.require(requires)[0].run_script(script_name, ns) | [
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WorkingSet.__iter__ | (self) | Yield distributions for non-duplicate projects in the working set
The yield order is the order in which the items' path entries were
added to the working set.
| Yield distributions for non-duplicate projects in the working set | def __iter__(self):
"""Yield distributions for non-duplicate projects in the working set
The yield order is the order in which the items' path entries were
added to the working set.
"""
seen = {}
for item in self.entries:
if item not in self.entry_keys:
# workaround a cache issue
continue
for key in self.entry_keys[item]:
if key not in seen:
seen[key] = 1
yield self.by_key[key] | [
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] | python | en | ['en', 'en', 'en'] | True |
WorkingSet.add | (self, dist, entry=None, insert=True, replace=False) | Add `dist` to working set, associated with `entry`
If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
On exit from this routine, `entry` is added to the end of the working
set's ``.entries`` (if it wasn't already present).
`dist` is only added to the working set if it's for a project that
doesn't already have a distribution in the set, unless `replace=True`.
If it's added, any callbacks registered with the ``subscribe()`` method
will be called.
| Add `dist` to working set, associated with `entry` | def add(self, dist, entry=None, insert=True, replace=False):
"""Add `dist` to working set, associated with `entry`
If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
On exit from this routine, `entry` is added to the end of the working
set's ``.entries`` (if it wasn't already present).
`dist` is only added to the working set if it's for a project that
doesn't already have a distribution in the set, unless `replace=True`.
If it's added, any callbacks registered with the ``subscribe()`` method
will be called.
"""
if insert:
dist.insert_on(self.entries, entry, replace=replace)
if entry is None:
entry = dist.location
keys = self.entry_keys.setdefault(entry, [])
keys2 = self.entry_keys.setdefault(dist.location, [])
if not replace and dist.key in self.by_key:
# ignore hidden distros
return
self.by_key[dist.key] = dist
if dist.key not in keys:
keys.append(dist.key)
if dist.key not in keys2:
keys2.append(dist.key)
self._added_new(dist) | [
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WorkingSet.resolve | (self, requirements, env=None, installer=None,
replace_conflicting=False, extras=None) | List all distributions needed to (recursively) meet `requirements`
`requirements` must be a sequence of ``Requirement`` objects. `env`,
if supplied, should be an ``Environment`` instance. If
not supplied, it defaults to all distributions available within any
entry or distribution in the working set. `installer`, if supplied,
will be invoked with each requirement that cannot be met by an
already-installed distribution; it should return a ``Distribution`` or
``None``.
Unless `replace_conflicting=True`, raises a VersionConflict exception
if
any requirements are found on the path that have the correct name but
the wrong version. Otherwise, if an `installer` is supplied it will be
invoked to obtain the correct version of the requirement and activate
it.
`extras` is a list of the extras to be used with these requirements.
This is important because extra requirements may look like `my_req;
extra = "my_extra"`, which would otherwise be interpreted as a purely
optional requirement. Instead, we want to be able to assert that these
requirements are truly required.
| List all distributions needed to (recursively) meet `requirements` | def resolve(self, requirements, env=None, installer=None,
replace_conflicting=False, extras=None):
"""List all distributions needed to (recursively) meet `requirements`
`requirements` must be a sequence of ``Requirement`` objects. `env`,
if supplied, should be an ``Environment`` instance. If
not supplied, it defaults to all distributions available within any
entry or distribution in the working set. `installer`, if supplied,
will be invoked with each requirement that cannot be met by an
already-installed distribution; it should return a ``Distribution`` or
``None``.
Unless `replace_conflicting=True`, raises a VersionConflict exception
if
any requirements are found on the path that have the correct name but
the wrong version. Otherwise, if an `installer` is supplied it will be
invoked to obtain the correct version of the requirement and activate
it.
`extras` is a list of the extras to be used with these requirements.
This is important because extra requirements may look like `my_req;
extra = "my_extra"`, which would otherwise be interpreted as a purely
optional requirement. Instead, we want to be able to assert that these
requirements are truly required.
"""
# set up the stack
requirements = list(requirements)[::-1]
# set of processed requirements
processed = {}
# key -> dist
best = {}
to_activate = []
req_extras = _ReqExtras()
# Mapping of requirement to set of distributions that required it;
# useful for reporting info about conflicts.
required_by = collections.defaultdict(set)
while requirements:
# process dependencies breadth-first
req = requirements.pop(0)
if req in processed:
# Ignore cyclic or redundant dependencies
continue
if not req_extras.markers_pass(req, extras):
continue
dist = best.get(req.key)
if dist is None:
# Find the best distribution and add it to the map
dist = self.by_key.get(req.key)
if dist is None or (dist not in req and replace_conflicting):
ws = self
if env is None:
if dist is None:
env = Environment(self.entries)
else:
# Use an empty environment and workingset to avoid
# any further conflicts with the conflicting
# distribution
env = Environment([])
ws = WorkingSet([])
dist = best[req.key] = env.best_match(
req, ws, installer,
replace_conflicting=replace_conflicting
)
if dist is None:
requirers = required_by.get(req, None)
raise DistributionNotFound(req, requirers)
to_activate.append(dist)
if dist not in req:
# Oops, the "best" so far conflicts with a dependency
dependent_req = required_by[req]
raise VersionConflict(dist, req).with_context(dependent_req)
# push the new requirements onto the stack
new_requirements = dist.requires(req.extras)[::-1]
requirements.extend(new_requirements)
# Register the new requirements needed by req
for new_requirement in new_requirements:
required_by[new_requirement].add(req.project_name)
req_extras[new_requirement] = req.extras
processed[req] = True
# return list of distros to activate
return to_activate | [
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] | [
804,
26
] | python | en | ['en', 'en', 'en'] | True |
WorkingSet.find_plugins | (
self, plugin_env, full_env=None, installer=None, fallback=True) | Find all activatable distributions in `plugin_env`
Example usage::
distributions, errors = working_set.find_plugins(
Environment(plugin_dirlist)
)
# add plugins+libs to sys.path
map(working_set.add, distributions)
# display errors
print('Could not load', errors)
The `plugin_env` should be an ``Environment`` instance that contains
only distributions that are in the project's "plugin directory" or
directories. The `full_env`, if supplied, should be an ``Environment``
contains all currently-available distributions. If `full_env` is not
supplied, one is created automatically from the ``WorkingSet`` this
method is called on, which will typically mean that every directory on
``sys.path`` will be scanned for distributions.
`installer` is a standard installer callback as used by the
``resolve()`` method. The `fallback` flag indicates whether we should
attempt to resolve older versions of a plugin if the newest version
cannot be resolved.
This method returns a 2-tuple: (`distributions`, `error_info`), where
`distributions` is a list of the distributions found in `plugin_env`
that were loadable, along with any other distributions that are needed
to resolve their dependencies. `error_info` is a dictionary mapping
unloadable plugin distributions to an exception instance describing the
error that occurred. Usually this will be a ``DistributionNotFound`` or
``VersionConflict`` instance.
| Find all activatable distributions in `plugin_env` | def find_plugins(
self, plugin_env, full_env=None, installer=None, fallback=True):
"""Find all activatable distributions in `plugin_env`
Example usage::
distributions, errors = working_set.find_plugins(
Environment(plugin_dirlist)
)
# add plugins+libs to sys.path
map(working_set.add, distributions)
# display errors
print('Could not load', errors)
The `plugin_env` should be an ``Environment`` instance that contains
only distributions that are in the project's "plugin directory" or
directories. The `full_env`, if supplied, should be an ``Environment``
contains all currently-available distributions. If `full_env` is not
supplied, one is created automatically from the ``WorkingSet`` this
method is called on, which will typically mean that every directory on
``sys.path`` will be scanned for distributions.
`installer` is a standard installer callback as used by the
``resolve()`` method. The `fallback` flag indicates whether we should
attempt to resolve older versions of a plugin if the newest version
cannot be resolved.
This method returns a 2-tuple: (`distributions`, `error_info`), where
`distributions` is a list of the distributions found in `plugin_env`
that were loadable, along with any other distributions that are needed
to resolve their dependencies. `error_info` is a dictionary mapping
unloadable plugin distributions to an exception instance describing the
error that occurred. Usually this will be a ``DistributionNotFound`` or
``VersionConflict`` instance.
"""
plugin_projects = list(plugin_env)
# scan project names in alphabetic order
plugin_projects.sort()
error_info = {}
distributions = {}
if full_env is None:
env = Environment(self.entries)
env += plugin_env
else:
env = full_env + plugin_env
shadow_set = self.__class__([])
# put all our entries in shadow_set
list(map(shadow_set.add, self))
for project_name in plugin_projects:
for dist in plugin_env[project_name]:
req = [dist.as_requirement()]
try:
resolvees = shadow_set.resolve(req, env, installer)
except ResolutionError as v:
# save error info
error_info[dist] = v
if fallback:
# try the next older version of project
continue
else:
# give up on this project, keep going
break
else:
list(map(shadow_set.add, resolvees))
distributions.update(dict.fromkeys(resolvees))
# success, no need to try any more versions of this project
break
distributions = list(distributions)
distributions.sort()
return distributions, error_info | [
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806,
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888,
40
] | python | en | ['en', 'en', 'en'] | True |
WorkingSet.require | (self, *requirements) | Ensure that distributions matching `requirements` are activated
`requirements` must be a string or a (possibly-nested) sequence
thereof, specifying the distributions and versions required. The
return value is a sequence of the distributions that needed to be
activated to fulfill the requirements; all relevant distributions are
included, even if they were already activated in this working set.
| Ensure that distributions matching `requirements` are activated | def require(self, *requirements):
"""Ensure that distributions matching `requirements` are activated
`requirements` must be a string or a (possibly-nested) sequence
thereof, specifying the distributions and versions required. The
return value is a sequence of the distributions that needed to be
activated to fulfill the requirements; all relevant distributions are
included, even if they were already activated in this working set.
"""
needed = self.resolve(parse_requirements(requirements))
for dist in needed:
self.add(dist)
return needed | [
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WorkingSet.subscribe | (self, callback, existing=True) | Invoke `callback` for all distributions
If `existing=True` (default),
call on all existing ones, as well.
| Invoke `callback` for all distributions | def subscribe(self, callback, existing=True):
"""Invoke `callback` for all distributions
If `existing=True` (default),
call on all existing ones, as well.
"""
if callback in self.callbacks:
return
self.callbacks.append(callback)
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for dist in self:
callback(dist) | [
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_ReqExtras.markers_pass | (self, req, extras=None) |
Evaluate markers for req against each extra that
demanded it.
Return False if the req has a marker and fails
evaluation. Otherwise, return True.
|
Evaluate markers for req against each extra that
demanded it. | def markers_pass(self, req, extras=None):
"""
Evaluate markers for req against each extra that
demanded it.
Return False if the req has a marker and fails
evaluation. Otherwise, return True.
"""
extra_evals = (
req.marker.evaluate({'extra': extra})
for extra in self.get(req, ()) + (extras or (None,))
)
return not req.marker or any(extra_evals) | [
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Environment.__init__ | (
self, search_path=None, platform=get_supported_platform(),
python=PY_MAJOR) | Snapshot distributions available on a search path
Any distributions found on `search_path` are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used.
`platform` is an optional string specifying the name of the platform
that platform-specific distributions must be compatible with. If
unspecified, it defaults to the current platform. `python` is an
optional string naming the desired version of Python (e.g. ``'3.6'``);
it defaults to the current version.
You may explicitly set `platform` (and/or `python`) to ``None`` if you
wish to map *all* distributions, not just those compatible with the
running platform or Python version.
| Snapshot distributions available on a search path | def __init__(
self, search_path=None, platform=get_supported_platform(),
python=PY_MAJOR):
"""Snapshot distributions available on a search path
Any distributions found on `search_path` are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used.
`platform` is an optional string specifying the name of the platform
that platform-specific distributions must be compatible with. If
unspecified, it defaults to the current platform. `python` is an
optional string naming the desired version of Python (e.g. ``'3.6'``);
it defaults to the current version.
You may explicitly set `platform` (and/or `python`) to ``None`` if you
wish to map *all* distributions, not just those compatible with the
running platform or Python version.
"""
self._distmap = {}
self.platform = platform
self.python = python
self.scan(search_path) | [
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Environment.can_add | (self, dist) | Is distribution `dist` acceptable for this environment?
The distribution must match the platform and python version
requirements specified when this environment was created, or False
is returned.
| Is distribution `dist` acceptable for this environment? | def can_add(self, dist):
"""Is distribution `dist` acceptable for this environment?
The distribution must match the platform and python version
requirements specified when this environment was created, or False
is returned.
"""
py_compat = (
self.python is None
or dist.py_version is None
or dist.py_version == self.python
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return py_compat and compatible_platforms(dist.platform, self.platform) | [
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Environment.remove | (self, dist) | Remove `dist` from the environment | Remove `dist` from the environment | def remove(self, dist):
"""Remove `dist` from the environment"""
self._distmap[dist.key].remove(dist) | [
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Environment.scan | (self, search_path=None) | Scan `search_path` for distributions usable in this environment
Any distributions found are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used. Only distributions conforming to
the platform/python version defined at initialization are added.
| Scan `search_path` for distributions usable in this environment | def scan(self, search_path=None):
"""Scan `search_path` for distributions usable in this environment
Any distributions found are added to the environment.
`search_path` should be a sequence of ``sys.path`` items. If not
supplied, ``sys.path`` is used. Only distributions conforming to
the platform/python version defined at initialization are added.
"""
if search_path is None:
search_path = sys.path
for item in search_path:
for dist in find_distributions(item):
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Environment.__getitem__ | (self, project_name) | Return a newest-to-oldest list of distributions for `project_name`
Uses case-insensitive `project_name` comparison, assuming all the
project's distributions use their project's name converted to all
lowercase as their key.
| Return a newest-to-oldest list of distributions for `project_name` | def __getitem__(self, project_name):
"""Return a newest-to-oldest list of distributions for `project_name`
Uses case-insensitive `project_name` comparison, assuming all the
project's distributions use their project's name converted to all
lowercase as their key.
"""
distribution_key = project_name.lower()
return self._distmap.get(distribution_key, []) | [
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Environment.add | (self, dist) | Add `dist` if we ``can_add()`` it and it has not already been added
| Add `dist` if we ``can_add()`` it and it has not already been added
| def add(self, dist):
"""Add `dist` if we ``can_add()`` it and it has not already been added
"""
if self.can_add(dist) and dist.has_version():
dists = self._distmap.setdefault(dist.key, [])
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dists.append(dist)
dists.sort(key=operator.attrgetter('hashcmp'), reverse=True) | [
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] | python | en | ['en', 'en', 'en'] | True |
Environment.best_match | (
self, req, working_set, installer=None, replace_conflicting=False) | Find distribution best matching `req` and usable on `working_set`
This calls the ``find(req)`` method of the `working_set` to see if a
suitable distribution is already active. (This may raise
``VersionConflict`` if an unsuitable version of the project is already
active in the specified `working_set`.) If a suitable distribution
isn't active, this method returns the newest distribution in the
environment that meets the ``Requirement`` in `req`. If no suitable
distribution is found, and `installer` is supplied, then the result of
calling the environment's ``obtain(req, installer)`` method will be
returned.
| Find distribution best matching `req` and usable on `working_set` | def best_match(
self, req, working_set, installer=None, replace_conflicting=False):
"""Find distribution best matching `req` and usable on `working_set`
This calls the ``find(req)`` method of the `working_set` to see if a
suitable distribution is already active. (This may raise
``VersionConflict`` if an unsuitable version of the project is already
active in the specified `working_set`.) If a suitable distribution
isn't active, this method returns the newest distribution in the
environment that meets the ``Requirement`` in `req`. If no suitable
distribution is found, and `installer` is supplied, then the result of
calling the environment's ``obtain(req, installer)`` method will be
returned.
"""
try:
dist = working_set.find(req)
except VersionConflict:
if not replace_conflicting:
raise
dist = None
if dist is not None:
return dist
for dist in self[req.key]:
if dist in req:
return dist
# try to download/install
return self.obtain(req, installer) | [
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Environment.obtain | (self, requirement, installer=None) | Obtain a distribution matching `requirement` (e.g. via download)
Obtain a distro that matches requirement (e.g. via download). In the
base ``Environment`` class, this routine just returns
``installer(requirement)``, unless `installer` is None, in which case
None is returned instead. This method is a hook that allows subclasses
to attempt other ways of obtaining a distribution before falling back
to the `installer` argument. | Obtain a distribution matching `requirement` (e.g. via download) | def obtain(self, requirement, installer=None):
"""Obtain a distribution matching `requirement` (e.g. via download)
Obtain a distro that matches requirement (e.g. via download). In the
base ``Environment`` class, this routine just returns
``installer(requirement)``, unless `installer` is None, in which case
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to attempt other ways of obtaining a distribution before falling back
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if installer is not None:
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Environment.__iter__ | (self) | Yield the unique project names of the available distributions | Yield the unique project names of the available distributions | def __iter__(self):
"""Yield the unique project names of the available distributions"""
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Environment.__iadd__ | (self, other) | In-place addition of a distribution or environment | In-place addition of a distribution or environment | def __iadd__(self, other):
"""In-place addition of a distribution or environment"""
if isinstance(other, Distribution):
self.add(other)
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Environment.__add__ | (self, other) | Add an environment or distribution to an environment | Add an environment or distribution to an environment | def __add__(self, other):
"""Add an environment or distribution to an environment"""
new = self.__class__([], platform=None, python=None)
for env in self, other:
new += env
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ResourceManager.resource_exists | (self, package_or_requirement, resource_name) | Does the named resource exist? | Does the named resource exist? | def resource_exists(self, package_or_requirement, resource_name):
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return get_provider(package_or_requirement).has_resource(resource_name) | [
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ResourceManager.resource_isdir | (self, package_or_requirement, resource_name) | Is the named resource an existing directory? | Is the named resource an existing directory? | def resource_isdir(self, package_or_requirement, resource_name):
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ResourceManager.resource_filename | (self, package_or_requirement, resource_name) | Return a true filesystem path for specified resource | Return a true filesystem path for specified resource | def resource_filename(self, package_or_requirement, resource_name):
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ResourceManager.resource_stream | (self, package_or_requirement, resource_name) | Return a readable file-like object for specified resource | Return a readable file-like object for specified resource | def resource_stream(self, package_or_requirement, resource_name):
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ResourceManager.resource_string | (self, package_or_requirement, resource_name) | Return specified resource as a string | Return specified resource as a string | def resource_string(self, package_or_requirement, resource_name):
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ResourceManager.resource_listdir | (self, package_or_requirement, resource_name) | List the contents of the named resource directory | List the contents of the named resource directory | def resource_listdir(self, package_or_requirement, resource_name):
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1159,
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ResourceManager.extraction_error | (self) | Give an error message for problems extracting file(s) | Give an error message for problems extracting file(s) | def extraction_error(self):
"""Give an error message for problems extracting file(s)"""
old_exc = sys.exc_info()[1]
cache_path = self.extraction_path or get_default_cache()
tmpl = textwrap.dedent("""
Can't extract file(s) to egg cache
The following error occurred while trying to extract file(s)
to the Python egg cache:
{old_exc}
The Python egg cache directory is currently set to:
{cache_path}
Perhaps your account does not have write access to this directory?
You can change the cache directory by setting the PYTHON_EGG_CACHE
environment variable to point to an accessible directory.
""").lstrip()
err = ExtractionError(tmpl.format(**locals()))
err.manager = self
err.cache_path = cache_path
err.original_error = old_exc
raise err | [
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ResourceManager.get_cache_path | (self, archive_name, names=()) | Return absolute location in cache for `archive_name` and `names`
The parent directory of the resulting path will be created if it does
not already exist. `archive_name` should be the base filename of the
enclosing egg (which may not be the name of the enclosing zipfile!),
including its ".egg" extension. `names`, if provided, should be a
sequence of path name parts "under" the egg's extraction location.
This method should only be called by resource providers that need to
obtain an extraction location, and only for names they intend to
extract, as it tracks the generated names for possible cleanup later.
| Return absolute location in cache for `archive_name` and `names` | def get_cache_path(self, archive_name, names=()):
"""Return absolute location in cache for `archive_name` and `names`
The parent directory of the resulting path will be created if it does
not already exist. `archive_name` should be the base filename of the
enclosing egg (which may not be the name of the enclosing zipfile!),
including its ".egg" extension. `names`, if provided, should be a
sequence of path name parts "under" the egg's extraction location.
This method should only be called by resource providers that need to
obtain an extraction location, and only for names they intend to
extract, as it tracks the generated names for possible cleanup later.
"""
extract_path = self.extraction_path or get_default_cache()
target_path = os.path.join(extract_path, archive_name + '-tmp', *names)
try:
_bypass_ensure_directory(target_path)
except Exception:
self.extraction_error()
self._warn_unsafe_extraction_path(extract_path)
self.cached_files[target_path] = 1
return target_path | [
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ResourceManager._warn_unsafe_extraction_path | (path) |
If the default extraction path is overridden and set to an insecure
location, such as /tmp, it opens up an opportunity for an attacker to
replace an extracted file with an unauthorized payload. Warn the user
if a known insecure location is used.
See Distribute #375 for more details.
|
If the default extraction path is overridden and set to an insecure
location, such as /tmp, it opens up an opportunity for an attacker to
replace an extracted file with an unauthorized payload. Warn the user
if a known insecure location is used. | def _warn_unsafe_extraction_path(path):
"""
If the default extraction path is overridden and set to an insecure
location, such as /tmp, it opens up an opportunity for an attacker to
replace an extracted file with an unauthorized payload. Warn the user
if a known insecure location is used.
See Distribute #375 for more details.
"""
if os.name == 'nt' and not path.startswith(os.environ['windir']):
# On Windows, permissions are generally restrictive by default
# and temp directories are not writable by other users, so
# bypass the warning.
return
mode = os.stat(path).st_mode
if mode & stat.S_IWOTH or mode & stat.S_IWGRP:
msg = (
"%s is writable by group/others and vulnerable to attack "
"when "
"used with get_resource_filename. Consider a more secure "
"location (set with .set_extraction_path or the "
"PYTHON_EGG_CACHE environment variable)." % path
)
warnings.warn(msg, UserWarning) | [
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] | python | en | ['en', 'error', 'th'] | False |
ResourceManager.postprocess | (self, tempname, filename) | Perform any platform-specific postprocessing of `tempname`
This is where Mac header rewrites should be done; other platforms don't
have anything special they should do.
Resource providers should call this method ONLY after successfully
extracting a compressed resource. They must NOT call it on resources
that are already in the filesystem.
`tempname` is the current (temporary) name of the file, and `filename`
is the name it will be renamed to by the caller after this routine
returns.
| Perform any platform-specific postprocessing of `tempname` | def postprocess(self, tempname, filename):
"""Perform any platform-specific postprocessing of `tempname`
This is where Mac header rewrites should be done; other platforms don't
have anything special they should do.
Resource providers should call this method ONLY after successfully
extracting a compressed resource. They must NOT call it on resources
that are already in the filesystem.
`tempname` is the current (temporary) name of the file, and `filename`
is the name it will be renamed to by the caller after this routine
returns.
"""
if os.name == 'posix':
# Make the resource executable
mode = ((os.stat(tempname).st_mode) | 0o555) & 0o7777
os.chmod(tempname, mode) | [
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ResourceManager.set_extraction_path | (self, path) | Set the base path where resources will be extracted to, if needed.
If you do not call this routine before any extractions take place, the
path defaults to the return value of ``get_default_cache()``. (Which
is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
platform-specific fallbacks. See that routine's documentation for more
details.)
Resources are extracted to subdirectories of this path based upon
information given by the ``IResourceProvider``. You may set this to a
temporary directory, but then you must call ``cleanup_resources()`` to
delete the extracted files when done. There is no guarantee that
``cleanup_resources()`` will be able to remove all extracted files.
(Note: you may not change the extraction path for a given resource
manager once resources have been extracted, unless you first call
``cleanup_resources()``.)
| Set the base path where resources will be extracted to, if needed. | def set_extraction_path(self, path):
"""Set the base path where resources will be extracted to, if needed.
If you do not call this routine before any extractions take place, the
path defaults to the return value of ``get_default_cache()``. (Which
is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
platform-specific fallbacks. See that routine's documentation for more
details.)
Resources are extracted to subdirectories of this path based upon
information given by the ``IResourceProvider``. You may set this to a
temporary directory, but then you must call ``cleanup_resources()`` to
delete the extracted files when done. There is no guarantee that
``cleanup_resources()`` will be able to remove all extracted files.
(Note: you may not change the extraction path for a given resource
manager once resources have been extracted, unless you first call
``cleanup_resources()``.)
"""
if self.cached_files:
raise ValueError(
"Can't change extraction path, files already extracted"
)
self.extraction_path = path | [
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ResourceManager.cleanup_resources | (self, force=False) |
Delete all extracted resource files and directories, returning a list
of the file and directory names that could not be successfully removed.
This function does not have any concurrency protection, so it should
generally only be called when the extraction path is a temporary
directory exclusive to a single process. This method is not
automatically called; you must call it explicitly or register it as an
``atexit`` function if you wish to ensure cleanup of a temporary
directory used for extractions.
|
Delete all extracted resource files and directories, returning a list
of the file and directory names that could not be successfully removed.
This function does not have any concurrency protection, so it should
generally only be called when the extraction path is a temporary
directory exclusive to a single process. This method is not
automatically called; you must call it explicitly or register it as an
``atexit`` function if you wish to ensure cleanup of a temporary
directory used for extractions.
| def cleanup_resources(self, force=False):
"""
Delete all extracted resource files and directories, returning a list
of the file and directory names that could not be successfully removed.
This function does not have any concurrency protection, so it should
generally only be called when the extraction path is a temporary
directory exclusive to a single process. This method is not
automatically called; you must call it explicitly or register it as an
``atexit`` function if you wish to ensure cleanup of a temporary
directory used for extractions.
""" | [
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NullProvider._validate_resource_path | (path) |
Validate the resource paths according to the docs.
https://setuptools.readthedocs.io/en/latest/pkg_resources.html#basic-resource-access
>>> warned = getfixture('recwarn')
>>> warnings.simplefilter('always')
>>> vrp = NullProvider._validate_resource_path
>>> vrp('foo/bar.txt')
>>> bool(warned)
False
>>> vrp('../foo/bar.txt')
>>> bool(warned)
True
>>> warned.clear()
>>> vrp('/foo/bar.txt')
>>> bool(warned)
True
>>> vrp('foo/../../bar.txt')
>>> bool(warned)
True
>>> warned.clear()
>>> vrp('foo/f../bar.txt')
>>> bool(warned)
False
Windows path separators are straight-up disallowed.
>>> vrp(r'\\foo/bar.txt')
Traceback (most recent call last):
...
ValueError: Use of .. or absolute path in a resource path \
is not allowed.
>>> vrp(r'C:\\foo/bar.txt')
Traceback (most recent call last):
...
ValueError: Use of .. or absolute path in a resource path \
is not allowed.
Blank values are allowed
>>> vrp('')
>>> bool(warned)
False
Non-string values are not.
>>> vrp(None)
Traceback (most recent call last):
...
AttributeError: ...
|
Validate the resource paths according to the docs.
https://setuptools.readthedocs.io/en/latest/pkg_resources.html#basic-resource-access | def _validate_resource_path(path):
"""
Validate the resource paths according to the docs.
https://setuptools.readthedocs.io/en/latest/pkg_resources.html#basic-resource-access
>>> warned = getfixture('recwarn')
>>> warnings.simplefilter('always')
>>> vrp = NullProvider._validate_resource_path
>>> vrp('foo/bar.txt')
>>> bool(warned)
False
>>> vrp('../foo/bar.txt')
>>> bool(warned)
True
>>> warned.clear()
>>> vrp('/foo/bar.txt')
>>> bool(warned)
True
>>> vrp('foo/../../bar.txt')
>>> bool(warned)
True
>>> warned.clear()
>>> vrp('foo/f../bar.txt')
>>> bool(warned)
False
Windows path separators are straight-up disallowed.
>>> vrp(r'\\foo/bar.txt')
Traceback (most recent call last):
...
ValueError: Use of .. or absolute path in a resource path \
is not allowed.
>>> vrp(r'C:\\foo/bar.txt')
Traceback (most recent call last):
...
ValueError: Use of .. or absolute path in a resource path \
is not allowed.
Blank values are allowed
>>> vrp('')
>>> bool(warned)
False
Non-string values are not.
>>> vrp(None)
Traceback (most recent call last):
...
AttributeError: ...
"""
invalid = (
os.path.pardir in path.split(posixpath.sep) or
posixpath.isabs(path) or
ntpath.isabs(path)
)
if not invalid:
return
msg = "Use of .. or absolute path in a resource path is not allowed."
# Aggressively disallow Windows absolute paths
if ntpath.isabs(path) and not posixpath.isabs(path):
raise ValueError(msg)
# for compatibility, warn; in future
# raise ValueError(msg)
warnings.warn(
msg[:-1] + " and will raise exceptions in a future release.",
DeprecationWarning,
stacklevel=4,
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ZipManifests.build | (cls, path) |
Build a dictionary similar to the zipimport directory
caches, except instead of tuples, store ZipInfo objects.
Use a platform-specific path separator (os.sep) for the path keys
for compatibility with pypy on Windows.
|
Build a dictionary similar to the zipimport directory
caches, except instead of tuples, store ZipInfo objects. | def build(cls, path):
"""
Build a dictionary similar to the zipimport directory
caches, except instead of tuples, store ZipInfo objects.
Use a platform-specific path separator (os.sep) for the path keys
for compatibility with pypy on Windows.
"""
with zipfile.ZipFile(path) as zfile:
items = (
(
name.replace('/', os.sep),
zfile.getinfo(name),
)
for name in zfile.namelist()
)
return dict(items) | [
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MemoizedZipManifests.load | (self, path) |
Load a manifest at path or return a suitable manifest already loaded.
|
Load a manifest at path or return a suitable manifest already loaded.
| def load(self, path):
"""
Load a manifest at path or return a suitable manifest already loaded.
"""
path = os.path.normpath(path)
mtime = os.stat(path).st_mtime
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ZipProvider._is_current | (self, file_path, zip_path) |
Return True if the file_path is current for this zip_path
|
Return True if the file_path is current for this zip_path
| def _is_current(self, file_path, zip_path):
"""
Return True if the file_path is current for this zip_path
"""
timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
if not os.path.isfile(file_path):
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stat = os.stat(file_path)
if stat.st_size != size or stat.st_mtime != timestamp:
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zip_contents = self.loader.get_data(zip_path)
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EggMetadata.__init__ | (self, importer) | Create a metadata provider from a zipimporter | Create a metadata provider from a zipimporter | def __init__(self, importer):
"""Create a metadata provider from a zipimporter"""
self.zip_pre = importer.archive + os.sep
self.loader = importer
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] | [
1941,
4
] | [
1950,
28
] | python | en | ['en', 'en', 'en'] | True |
EntryPoint.load | (self, require=True, *args, **kwargs) |
Require packages for this EntryPoint, then resolve it.
|
Require packages for this EntryPoint, then resolve it.
| def load(self, require=True, *args, **kwargs):
"""
Require packages for this EntryPoint, then resolve it.
"""
if not require or args or kwargs:
warnings.warn(
"Parameters to load are deprecated. Call .resolve and "
".require separately.",
PkgResourcesDeprecationWarning,
stacklevel=2,
)
if require:
self.require(*args, **kwargs)
return self.resolve() | [
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EntryPoint.resolve | (self) |
Resolve the entry point from its module and attrs.
|
Resolve the entry point from its module and attrs.
| def resolve(self):
"""
Resolve the entry point from its module and attrs.
"""
module = __import__(self.module_name, fromlist=['__name__'], level=0)
try:
return functools.reduce(getattr, self.attrs, module)
except AttributeError as exc:
raise ImportError(str(exc)) | [
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EntryPoint.parse | (cls, src, dist=None) | Parse a single entry point from string `src`
Entry point syntax follows the form::
name = some.module:some.attr [extra1, extra2]
The entry name and module name are required, but the ``:attrs`` and
``[extras]`` parts are optional
| Parse a single entry point from string `src` | def parse(cls, src, dist=None):
"""Parse a single entry point from string `src`
Entry point syntax follows the form::
name = some.module:some.attr [extra1, extra2]
The entry name and module name are required, but the ``:attrs`` and
``[extras]`` parts are optional
"""
m = cls.pattern.match(src)
if not m:
msg = "EntryPoint must be in 'name=module:attrs [extras]' format"
raise ValueError(msg, src)
res = m.groupdict()
extras = cls._parse_extras(res['extras'])
attrs = res['attr'].split('.') if res['attr'] else ()
return cls(res['name'], res['module'], attrs, extras, dist) | [
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2477,
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] | [
2494,
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] | python | en | ['en', 'en', 'en'] | True |
EntryPoint.parse_group | (cls, group, lines, dist=None) | Parse an entry point group | Parse an entry point group | def parse_group(cls, group, lines, dist=None):
"""Parse an entry point group"""
if not MODULE(group):
raise ValueError("Invalid group name", group)
this = {}
for line in yield_lines(lines):
ep = cls.parse(line, dist)
if ep.name in this:
raise ValueError("Duplicate entry point", group, ep.name)
this[ep.name] = ep
return this | [
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2506,
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] | [
2516,
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] | python | en | ['en', 'en', 'en'] | True |
EntryPoint.parse_map | (cls, data, dist=None) | Parse a map of entry point groups | Parse a map of entry point groups | def parse_map(cls, data, dist=None):
"""Parse a map of entry point groups"""
if isinstance(data, dict):
data = data.items()
else:
data = split_sections(data)
maps = {}
for group, lines in data:
if group is None:
if not lines:
continue
raise ValueError("Entry points must be listed in groups")
group = group.strip()
if group in maps:
raise ValueError("Duplicate group name", group)
maps[group] = cls.parse_group(group, lines, dist)
return maps | [
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] | [
2535,
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] | python | en | ['en', 'en', 'en'] | True |
Distribution._dep_map | (self) |
A map of extra to its list of (direct) requirements
for this distribution, including the null extra.
|
A map of extra to its list of (direct) requirements
for this distribution, including the null extra.
| def _dep_map(self):
"""
A map of extra to its list of (direct) requirements
for this distribution, including the null extra.
"""
try:
return self.__dep_map
except AttributeError:
self.__dep_map = self._filter_extras(self._build_dep_map())
return self.__dep_map | [
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] | [
2702,
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] | python | en | ['en', 'error', 'th'] | False |
Distribution._filter_extras | (dm) |
Given a mapping of extras to dependencies, strip off
environment markers and filter out any dependencies
not matching the markers.
|
Given a mapping of extras to dependencies, strip off
environment markers and filter out any dependencies
not matching the markers.
| def _filter_extras(dm):
"""
Given a mapping of extras to dependencies, strip off
environment markers and filter out any dependencies
not matching the markers.
"""
for extra in list(filter(None, dm)):
new_extra = extra
reqs = dm.pop(extra)
new_extra, _, marker = extra.partition(':')
fails_marker = marker and (
invalid_marker(marker)
or not evaluate_marker(marker)
)
if fails_marker:
reqs = []
new_extra = safe_extra(new_extra) or None
dm.setdefault(new_extra, []).extend(reqs)
return dm | [
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2705,
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] | [
2724,
17
] | python | en | ['en', 'error', 'th'] | False |
Distribution.requires | (self, extras=()) | List of Requirements needed for this distro if `extras` are used | List of Requirements needed for this distro if `extras` are used | def requires(self, extras=()):
"""List of Requirements needed for this distro if `extras` are used"""
dm = self._dep_map
deps = []
deps.extend(dm.get(None, ()))
for ext in extras:
try:
deps.extend(dm[safe_extra(ext)])
except KeyError:
raise UnknownExtra(
"%s has no such extra feature %r" % (self, ext)
)
return deps | [
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2745,
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] | python | en | ['en', 'en', 'en'] | True |
Distribution._get_metadata_path_for_display | (self, name) |
Return the path to the given metadata file, if available.
|
Return the path to the given metadata file, if available.
| def _get_metadata_path_for_display(self, name):
"""
Return the path to the given metadata file, if available.
"""
try:
# We need to access _get_metadata_path() on the provider object
# directly rather than through this class's __getattr__()
# since _get_metadata_path() is marked private.
path = self._provider._get_metadata_path(name)
# Handle exceptions e.g. in case the distribution's metadata
# provider doesn't support _get_metadata_path().
except Exception:
return '[could not detect]'
return path | [
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2762,
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] | python | en | ['en', 'error', 'th'] | False |
Distribution.activate | (self, path=None, replace=False) | Ensure distribution is importable on `path` (default=sys.path) | Ensure distribution is importable on `path` (default=sys.path) | def activate(self, path=None, replace=False):
"""Ensure distribution is importable on `path` (default=sys.path)"""
if path is None:
path = sys.path
self.insert_on(path, replace=replace)
if path is sys.path:
fixup_namespace_packages(self.location)
for pkg in self._get_metadata('namespace_packages.txt'):
if pkg in sys.modules:
declare_namespace(pkg) | [
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] | [
2784,
42
] | python | en | ['en', 'en', 'en'] | True |
Distribution.egg_name | (self) | Return what this distribution's standard .egg filename should be | Return what this distribution's standard .egg filename should be | def egg_name(self):
"""Return what this distribution's standard .egg filename should be"""
filename = "%s-%s-py%s" % (
to_filename(self.project_name), to_filename(self.version),
self.py_version or PY_MAJOR
)
if self.platform:
filename += '-' + self.platform
return filename | [
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2795,
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Distribution.__getattr__ | (self, attr) | Delegate all unrecognized public attributes to .metadata provider | Delegate all unrecognized public attributes to .metadata provider | def __getattr__(self, attr):
"""Delegate all unrecognized public attributes to .metadata provider"""
if attr.startswith('_'):
raise AttributeError(attr)
return getattr(self._provider, attr) | [
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2815,
44
] | python | en | ['en', 'it', 'en'] | True |
Distribution.as_requirement | (self) | Return a ``Requirement`` that matches this distribution exactly | Return a ``Requirement`` that matches this distribution exactly | def as_requirement(self):
"""Return a ``Requirement`` that matches this distribution exactly"""
if isinstance(self.parsed_version, packaging.version.Version):
spec = "%s==%s" % (self.project_name, self.parsed_version)
else:
spec = "%s===%s" % (self.project_name, self.parsed_version)
return Requirement.parse(spec) | [
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2844,
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] | python | en | ['en', 'en', 'en'] | True |
Distribution.load_entry_point | (self, group, name) | Return the `name` entry point of `group` or raise ImportError | Return the `name` entry point of `group` or raise ImportError | def load_entry_point(self, group, name):
"""Return the `name` entry point of `group` or raise ImportError"""
ep = self.get_entry_info(group, name)
if ep is None:
raise ImportError("Entry point %r not found" % ((group, name),))
return ep.load() | [
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Distribution.get_entry_map | (self, group=None) | Return the entry point map for `group`, or the full entry map | Return the entry point map for `group`, or the full entry map | def get_entry_map(self, group=None):
"""Return the entry point map for `group`, or the full entry map"""
try:
ep_map = self._ep_map
except AttributeError:
ep_map = self._ep_map = EntryPoint.parse_map(
self._get_metadata('entry_points.txt'), self
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if group is not None:
return ep_map.get(group, {})
return ep_map | [
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] | [
2863,
21
] | python | en | ['en', 'en', 'en'] | True |
Distribution.get_entry_info | (self, group, name) | Return the EntryPoint object for `group`+`name`, or ``None`` | Return the EntryPoint object for `group`+`name`, or ``None`` | def get_entry_info(self, group, name):
"""Return the EntryPoint object for `group`+`name`, or ``None``"""
return self.get_entry_map(group).get(name) | [
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50
] | python | en | ['en', 'en', 'en'] | True |
Distribution.insert_on | (self, path, loc=None, replace=False) | Ensure self.location is on path
If replace=False (default):
- If location is already in path anywhere, do nothing.
- Else:
- If it's an egg and its parent directory is on path,
insert just ahead of the parent.
- Else: add to the end of path.
If replace=True:
- If location is already on path anywhere (not eggs)
or higher priority than its parent (eggs)
do nothing.
- Else:
- If it's an egg and its parent directory is on path,
insert just ahead of the parent,
removing any lower-priority entries.
- Else: add it to the front of path.
| Ensure self.location is on path | def insert_on(self, path, loc=None, replace=False):
"""Ensure self.location is on path
If replace=False (default):
- If location is already in path anywhere, do nothing.
- Else:
- If it's an egg and its parent directory is on path,
insert just ahead of the parent.
- Else: add to the end of path.
If replace=True:
- If location is already on path anywhere (not eggs)
or higher priority than its parent (eggs)
do nothing.
- Else:
- If it's an egg and its parent directory is on path,
insert just ahead of the parent,
removing any lower-priority entries.
- Else: add it to the front of path.
"""
loc = loc or self.location
if not loc:
return
nloc = _normalize_cached(loc)
bdir = os.path.dirname(nloc)
npath = [(p and _normalize_cached(p) or p) for p in path]
for p, item in enumerate(npath):
if item == nloc:
if replace:
break
else:
# don't modify path (even removing duplicates) if
# found and not replace
return
elif item == bdir and self.precedence == EGG_DIST:
# if it's an .egg, give it precedence over its directory
# UNLESS it's already been added to sys.path and replace=False
if (not replace) and nloc in npath[p:]:
return
if path is sys.path:
self.check_version_conflict()
path.insert(p, loc)
npath.insert(p, nloc)
break
else:
if path is sys.path:
self.check_version_conflict()
if replace:
path.insert(0, loc)
else:
path.append(loc)
return
# p is the spot where we found or inserted loc; now remove duplicates
while True:
try:
np = npath.index(nloc, p + 1)
except ValueError:
break
else:
del npath[np], path[np]
# ha!
p = np
return | [
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2869,
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] | [
2935,
14
] | python | en | ['en', 'en', 'en'] | True |
Distribution.clone | (self, **kw) | Copy this distribution, substituting in any changed keyword args | Copy this distribution, substituting in any changed keyword args | def clone(self, **kw):
"""Copy this distribution, substituting in any changed keyword args"""
names = 'project_name version py_version platform location precedence'
for attr in names.split():
kw.setdefault(attr, getattr(self, attr, None))
kw.setdefault('metadata', self._provider)
return self.__class__(**kw) | [
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2973,
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] | python | en | ['en', 'en', 'en'] | True |
EggInfoDistribution._reload_version | (self) |
Packages installed by distutils (e.g. numpy or scipy),
which uses an old safe_version, and so
their version numbers can get mangled when
converted to filenames (e.g., 1.11.0.dev0+2329eae to
1.11.0.dev0_2329eae). These distributions will not be
parsed properly
downstream by Distribution and safe_version, so
take an extra step and try to get the version number from
the metadata file itself instead of the filename.
|
Packages installed by distutils (e.g. numpy or scipy),
which uses an old safe_version, and so
their version numbers can get mangled when
converted to filenames (e.g., 1.11.0.dev0+2329eae to
1.11.0.dev0_2329eae). These distributions will not be
parsed properly
downstream by Distribution and safe_version, so
take an extra step and try to get the version number from
the metadata file itself instead of the filename.
| def _reload_version(self):
"""
Packages installed by distutils (e.g. numpy or scipy),
which uses an old safe_version, and so
their version numbers can get mangled when
converted to filenames (e.g., 1.11.0.dev0+2329eae to
1.11.0.dev0_2329eae). These distributions will not be
parsed properly
downstream by Distribution and safe_version, so
take an extra step and try to get the version number from
the metadata file itself instead of the filename.
"""
md_version = self._get_version()
if md_version:
self._version = md_version
return self | [
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2996,
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] | python | en | ['en', 'error', 'th'] | False |
_normalize_name | (name) | Make a name consistent regardless of source (environment or file)
| Make a name consistent regardless of source (environment or file)
| def _normalize_name(name):
# type: (str) -> str
"""Make a name consistent regardless of source (environment or file)
"""
name = name.lower().replace('_', '-')
if name.startswith('--'):
name = name[2:] # only prefer long opts
return name | [
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Configuration.load | (self) | Loads configuration from configuration files and environment
| Loads configuration from configuration files and environment
| def load(self):
# type: () -> None
"""Loads configuration from configuration files and environment
"""
self._load_config_files()
if not self.isolated:
self._load_environment_vars() | [
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Configuration.get_file_to_edit | (self) | Returns the file with highest priority in configuration
| Returns the file with highest priority in configuration
| def get_file_to_edit(self):
# type: () -> Optional[str]
"""Returns the file with highest priority in configuration
"""
assert self.load_only is not None, \
"Need to be specified a file to be editing"
try:
return self._get_parser_to_modify()[0]
except IndexError:
return None | [
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Configuration.items | (self) | Returns key-value pairs like dict.items() representing the loaded
configuration
| Returns key-value pairs like dict.items() representing the loaded
configuration
| def items(self):
# type: () -> Iterable[Tuple[str, Any]]
"""Returns key-value pairs like dict.items() representing the loaded
configuration
"""
return self._dictionary.items() | [
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154,
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Configuration.get_value | (self, key) | Get a value from the configuration.
| Get a value from the configuration.
| def get_value(self, key):
# type: (str) -> Any
"""Get a value from the configuration.
"""
try:
return self._dictionary[key]
except KeyError:
raise ConfigurationError(f"No such key - {key}") | [
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Configuration.set_value | (self, key, value) | Modify a value in the configuration.
| Modify a value in the configuration.
| def set_value(self, key, value):
# type: (str, Any) -> None
"""Modify a value in the configuration.
"""
self._ensure_have_load_only()
assert self.load_only
fname, parser = self._get_parser_to_modify()
if parser is not None:
section, name = _disassemble_key(key)
# Modify the parser and the configuration
if not parser.has_section(section):
parser.add_section(section)
parser.set(section, name, value)
self._config[self.load_only][key] = value
self._mark_as_modified(fname, parser) | [
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] | python | en | ['en', 'it', 'en'] | True |
Configuration.unset_value | (self, key) | Unset a value in the configuration. | Unset a value in the configuration. | def unset_value(self, key):
# type: (str) -> None
"""Unset a value in the configuration."""
self._ensure_have_load_only()
assert self.load_only
if key not in self._config[self.load_only]:
raise ConfigurationError(f"No such key - {key}")
fname, parser = self._get_parser_to_modify()
if parser is not None:
section, name = _disassemble_key(key)
if not (parser.has_section(section)
and parser.remove_option(section, name)):
# The option was not removed.
raise ConfigurationError(
"Fatal Internal error [id=1]. Please report as a bug."
)
# The section may be empty after the option was removed.
if not parser.items(section):
parser.remove_section(section)
self._mark_as_modified(fname, parser)
del self._config[self.load_only][key] | [
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210,
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Configuration.save | (self) | Save the current in-memory state.
| Save the current in-memory state.
| def save(self):
# type: () -> None
"""Save the current in-memory state.
"""
self._ensure_have_load_only()
for fname, parser in self._modified_parsers:
logger.info("Writing to %s", fname)
# Ensure directory exists.
ensure_dir(os.path.dirname(fname))
with open(fname, "w") as f:
parser.write(f) | [
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Configuration._dictionary | (self) | A dictionary representing the loaded configuration.
| A dictionary representing the loaded configuration.
| def _dictionary(self):
# type: () -> Dict[str, Any]
"""A dictionary representing the loaded configuration.
"""
# NOTE: Dictionaries are not populated if not loaded. So, conditionals
# are not needed here.
retval = {}
for variant in OVERRIDE_ORDER:
retval.update(self._config[variant])
return retval | [
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Configuration._load_config_files | (self) | Loads configuration from configuration files
| Loads configuration from configuration files
| def _load_config_files(self):
# type: () -> None
"""Loads configuration from configuration files
"""
config_files = dict(self.iter_config_files())
if config_files[kinds.ENV][0:1] == [os.devnull]:
logger.debug(
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return
for variant, files in config_files.items():
for fname in files:
# If there's specific variant set in `load_only`, load only
# that variant, not the others.
if self.load_only is not None and variant != self.load_only:
logger.debug(
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continue
parser = self._load_file(variant, fname)
# Keeping track of the parsers used
self._parsers[variant].append((fname, parser)) | [
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Configuration._load_environment_vars | (self) | Loads configuration from environment variables
| Loads configuration from environment variables
| def _load_environment_vars(self):
# type: () -> None
"""Loads configuration from environment variables
"""
self._config[kinds.ENV_VAR].update(
self._normalized_keys(":env:", self.get_environ_vars())
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")",
")",
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] | [
312,
4
] | [
318,
9
] | python | en | ['en', 'en', 'en'] | True |
Configuration._normalized_keys | (self, section, items) | Normalizes items to construct a dictionary with normalized keys.
This routine is where the names become keys and are made the same
regardless of source - configuration files or environment.
| Normalizes items to construct a dictionary with normalized keys. | def _normalized_keys(self, section, items):
# type: (str, Iterable[Tuple[str, Any]]) -> Dict[str, Any]
"""Normalizes items to construct a dictionary with normalized keys.
This routine is where the names become keys and are made the same
regardless of source - configuration files or environment.
"""
normalized = {}
for name, val in items:
key = section + "." + _normalize_name(name)
normalized[key] = val
return normalized | [
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Configuration.get_environ_vars | (self) | Returns a generator with all environmental vars with prefix PIP_ | Returns a generator with all environmental vars with prefix PIP_ | def get_environ_vars(self):
# type: () -> Iterable[Tuple[str, str]]
"""Returns a generator with all environmental vars with prefix PIP_"""
for key, val in os.environ.items():
if key.startswith("PIP_"):
name = key[4:].lower()
if name not in ENV_NAMES_IGNORED:
yield name, val | [
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Configuration.iter_config_files | (self) | Yields variant and configuration files associated with it.
This should be treated like items of a dictionary.
| Yields variant and configuration files associated with it. | def iter_config_files(self):
# type: () -> Iterable[Tuple[Kind, List[str]]]
"""Yields variant and configuration files associated with it.
This should be treated like items of a dictionary.
"""
# SMELL: Move the conditions out of this function
# environment variables have the lowest priority
config_file = os.environ.get('PIP_CONFIG_FILE', None)
if config_file is not None:
yield kinds.ENV, [config_file]
else:
yield kinds.ENV, []
config_files = get_configuration_files()
# at the base we have any global configuration
yield kinds.GLOBAL, config_files[kinds.GLOBAL]
# per-user configuration next
should_load_user_config = not self.isolated and not (
config_file and os.path.exists(config_file)
)
if should_load_user_config:
# The legacy config file is overridden by the new config file
yield kinds.USER, config_files[kinds.USER]
# finally virtualenv configuration first trumping others
yield kinds.SITE, config_files[kinds.SITE] | [
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Configuration.get_values_in_config | (self, variant) | Get values present in a config file | Get values present in a config file | def get_values_in_config(self, variant):
# type: (Kind) -> Dict[str, Any]
"""Get values present in a config file"""
return self._config[variant] | [
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parse_args_to_fbcode_builder_opts | (add_args_fn, top_level_opts, opts, help) |
Provides some standard arguments: --debug, --option, --shell-quoted-option
Then, calls `add_args_fn(parser)` to add application-specific arguments.
`opts` are first used as defaults for the various command-line
arguments. Then, the parsed arguments are mapped back into `opts`,
which then become the values for `FBCodeBuilder.option()`, to be used
both by the builder and by `get_steps_fn()`.
`help` is printed in response to the `--help` argument.
| def parse_args_to_fbcode_builder_opts(add_args_fn, top_level_opts, opts, help):
'''
Provides some standard arguments: --debug, --option, --shell-quoted-option
Then, calls `add_args_fn(parser)` to add application-specific arguments.
`opts` are first used as defaults for the various command-line
arguments. Then, the parsed arguments are mapped back into `opts`,
which then become the values for `FBCodeBuilder.option()`, to be used
both by the builder and by `get_steps_fn()`.
`help` is printed in response to the `--help` argument.
'''
top_level_opts = set(top_level_opts)
parser = argparse.ArgumentParser(
description=help,
formatter_class=argparse.RawDescriptionHelpFormatter
)
add_args_fn(parser)
parser.add_argument(
'--option', nargs=2, metavar=('KEY', 'VALUE'), action='append',
default=[
(k, v) for k, v in opts.items()
if k not in top_level_opts and not isinstance(v, ShellQuoted)
],
help='Set project-specific options. These are assumed to be raw '
'strings, to be shell-escaped as needed. Default: %(default)s.',
)
parser.add_argument(
'--shell-quoted-option', nargs=2, metavar=('KEY', 'VALUE'),
action='append',
default=[
(k, raw_shell(v)) for k, v in opts.items()
if k not in top_level_opts and isinstance(v, ShellQuoted)
],
help='Set project-specific options. These are assumed to be shell-'
'quoted, and may be used in commands as-is. Default: %(default)s.',
)
parser.add_argument('--debug', action='store_true', help='Log more')
args = parser.parse_args()
logging.basicConfig(
level=logging.DEBUG if args.debug else logging.INFO,
format='%(levelname)s: %(message)s'
)
# Map command-line args back into opts.
logging.debug('opts before command-line arguments: {0}'.format(opts))
new_opts = {}
for key in top_level_opts:
val = getattr(args, key)
# Allow clients to unset a default by passing a value of None in opts
if val is not None:
new_opts[key] = val
for key, val in args.option:
new_opts[key] = val
for key, val in args.shell_quoted_option:
new_opts[key] = ShellQuoted(val)
logging.debug('opts after command-line arguments: {0}'.format(new_opts))
return new_opts | [
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13,
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] | [
81,
19
] | python | en | ['en', 'error', 'th'] | False |
|
mark_safe | (s) |
Explicitly mark a string as safe for (HTML) output purposes. The returned
object can be used everywhere a string is appropriate.
If used on a method as a decorator, mark the returned data as safe.
Can be called multiple times on a single string.
|
Explicitly mark a string as safe for (HTML) output purposes. The returned
object can be used everywhere a string is appropriate. | def mark_safe(s):
"""
Explicitly mark a string as safe for (HTML) output purposes. The returned
object can be used everywhere a string is appropriate.
If used on a method as a decorator, mark the returned data as safe.
Can be called multiple times on a single string.
"""
if hasattr(s, '__html__'):
return s
if callable(s):
return _safety_decorator(mark_safe, s)
return SafeString(s) | [
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SafeData.__html__ | (self) |
Return the html representation of a string for interoperability.
This allows other template engines to understand Django's SafeData.
|
Return the html representation of a string for interoperability. | def __html__(self):
"""
Return the html representation of a string for interoperability.
This allows other template engines to understand Django's SafeData.
"""
return self | [
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SafeString.__add__ | (self, rhs) |
Concatenating a safe string with another safe bytestring or
safe string is safe. Otherwise, the result is no longer safe.
|
Concatenating a safe string with another safe bytestring or
safe string is safe. Otherwise, the result is no longer safe.
| def __add__(self, rhs):
"""
Concatenating a safe string with another safe bytestring or
safe string is safe. Otherwise, the result is no longer safe.
"""
t = super().__add__(rhs)
if isinstance(rhs, SafeData):
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return t | [
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ChangeList.get_filters_params | (self, params=None) |
Return all params except IGNORED_PARAMS.
|
Return all params except IGNORED_PARAMS.
| def get_filters_params(self, params=None):
"""
Return all params except IGNORED_PARAMS.
"""
params = params or self.params
lookup_params = params.copy() # a dictionary of the query string
# Remove all the parameters that are globally and systematically
# ignored.
for ignored in IGNORED_PARAMS:
if ignored in lookup_params:
del lookup_params[ignored]
return lookup_params | [
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ChangeList.get_ordering_field | (self, field_name) |
Return the proper model field name corresponding to the given
field_name to use for ordering. field_name may either be the name of a
proper model field or the name of a method (on the admin or model) or a
callable with the 'admin_order_field' attribute. Return None if no
proper model field name can be matched.
|
Return the proper model field name corresponding to the given
field_name to use for ordering. field_name may either be the name of a
proper model field or the name of a method (on the admin or model) or a
callable with the 'admin_order_field' attribute. Return None if no
proper model field name can be matched.
| def get_ordering_field(self, field_name):
"""
Return the proper model field name corresponding to the given
field_name to use for ordering. field_name may either be the name of a
proper model field or the name of a method (on the admin or model) or a
callable with the 'admin_order_field' attribute. Return None if no
proper model field name can be matched.
"""
try:
field = self.lookup_opts.get_field(field_name)
return field.name
except FieldDoesNotExist:
# See whether field_name is a name of a non-field
# that allows sorting.
if callable(field_name):
attr = field_name
elif hasattr(self.model_admin, field_name):
attr = getattr(self.model_admin, field_name)
else:
attr = getattr(self.model, field_name)
if isinstance(attr, property) and hasattr(attr, 'fget'):
attr = attr.fget
return getattr(attr, 'admin_order_field', None) | [
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ChangeList.get_ordering | (self, request, queryset) |
Return the list of ordering fields for the change list.
First check the get_ordering() method in model admin, then check
the object's default ordering. Then, any manually-specified ordering
from the query string overrides anything. Finally, a deterministic
order is guaranteed by calling _get_deterministic_ordering() with the
constructed ordering.
|
Return the list of ordering fields for the change list.
First check the get_ordering() method in model admin, then check
the object's default ordering. Then, any manually-specified ordering
from the query string overrides anything. Finally, a deterministic
order is guaranteed by calling _get_deterministic_ordering() with the
constructed ordering.
| def get_ordering(self, request, queryset):
"""
Return the list of ordering fields for the change list.
First check the get_ordering() method in model admin, then check
the object's default ordering. Then, any manually-specified ordering
from the query string overrides anything. Finally, a deterministic
order is guaranteed by calling _get_deterministic_ordering() with the
constructed ordering.
"""
params = self.params
ordering = list(self.model_admin.get_ordering(request) or self._get_default_ordering())
if ORDER_VAR in params:
# Clear ordering and used params
ordering = []
order_params = params[ORDER_VAR].split('.')
for p in order_params:
try:
none, pfx, idx = p.rpartition('-')
field_name = self.list_display[int(idx)]
order_field = self.get_ordering_field(field_name)
if not order_field:
continue # No 'admin_order_field', skip it
if isinstance(order_field, OrderBy):
if pfx == '-':
order_field = order_field.copy()
order_field.reverse_ordering()
ordering.append(order_field)
elif hasattr(order_field, 'resolve_expression'):
# order_field is an expression.
ordering.append(order_field.desc() if pfx == '-' else order_field.asc())
# reverse order if order_field has already "-" as prefix
elif order_field.startswith('-') and pfx == '-':
ordering.append(order_field[1:])
else:
ordering.append(pfx + order_field)
except (IndexError, ValueError):
continue # Invalid ordering specified, skip it.
# Add the given query's ordering fields, if any.
ordering.extend(queryset.query.order_by)
return self._get_deterministic_ordering(ordering) | [
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] | [
296,
4
] | [
337,
57
] | python | en | ['en', 'error', 'th'] | False |
ChangeList._get_deterministic_ordering | (self, ordering) |
Ensure a deterministic order across all database backends. Search for a
single field or unique together set of fields providing a total
ordering. If these are missing, augment the ordering with a descendant
primary key.
|
Ensure a deterministic order across all database backends. Search for a
single field or unique together set of fields providing a total
ordering. If these are missing, augment the ordering with a descendant
primary key.
| def _get_deterministic_ordering(self, ordering):
"""
Ensure a deterministic order across all database backends. Search for a
single field or unique together set of fields providing a total
ordering. If these are missing, augment the ordering with a descendant
primary key.
"""
ordering = list(ordering)
ordering_fields = set()
total_ordering_fields = {'pk'} | {
field.attname for field in self.lookup_opts.fields
if field.unique and not field.null
}
for part in ordering:
# Search for single field providing a total ordering.
field_name = None
if isinstance(part, str):
field_name = part.lstrip('-')
elif isinstance(part, F):
field_name = part.name
elif isinstance(part, OrderBy) and isinstance(part.expression, F):
field_name = part.expression.name
if field_name:
# Normalize attname references by using get_field().
try:
field = self.lookup_opts.get_field(field_name)
except FieldDoesNotExist:
# Could be "?" for random ordering or a related field
# lookup. Skip this part of introspection for now.
continue
# Ordering by a related field name orders by the referenced
# model's ordering. Skip this part of introspection for now.
if field.remote_field and field_name == field.name:
continue
if field.attname in total_ordering_fields:
break
ordering_fields.add(field.attname)
else:
# No single total ordering field, try unique_together and total
# unique constraints.
constraint_field_names = (
*self.lookup_opts.unique_together,
*(
constraint.fields
for constraint in self.lookup_opts.total_unique_constraints
),
)
for field_names in constraint_field_names:
# Normalize attname references by using get_field().
fields = [self.lookup_opts.get_field(field_name) for field_name in field_names]
# Composite unique constraints containing a nullable column
# cannot ensure total ordering.
if any(field.null for field in fields):
continue
if ordering_fields.issuperset(field.attname for field in fields):
break
else:
# If no set of unique fields is present in the ordering, rely
# on the primary key to provide total ordering.
ordering.append('-pk')
return ordering | [
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ChangeList.get_ordering_field_columns | (self) |
Return a dictionary of ordering field column numbers and asc/desc.
|
Return a dictionary of ordering field column numbers and asc/desc.
| def get_ordering_field_columns(self):
"""
Return a dictionary of ordering field column numbers and asc/desc.
"""
# We must cope with more than one column having the same underlying sort
# field, so we base things on column numbers.
ordering = self._get_default_ordering()
ordering_fields = {}
if ORDER_VAR not in self.params:
# for ordering specified on ModelAdmin or model Meta, we don't know
# the right column numbers absolutely, because there might be more
# than one column associated with that ordering, so we guess.
for field in ordering:
if isinstance(field, (Combinable, OrderBy)):
if not isinstance(field, OrderBy):
field = field.asc()
if isinstance(field.expression, F):
order_type = 'desc' if field.descending else 'asc'
field = field.expression.name
else:
continue
elif field.startswith('-'):
field = field[1:]
order_type = 'desc'
else:
order_type = 'asc'
for index, attr in enumerate(self.list_display):
if self.get_ordering_field(attr) == field:
ordering_fields[index] = order_type
break
else:
for p in self.params[ORDER_VAR].split('.'):
none, pfx, idx = p.rpartition('-')
try:
idx = int(idx)
except ValueError:
continue # skip it
ordering_fields[idx] = 'desc' if pfx == '-' else 'asc'
return ordering_fields | [
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401,
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439,
30
] | python | en | ['en', 'error', 'th'] | False |
CPointerBase.__del__ | (self) |
Free the memory used by the C++ object.
|
Free the memory used by the C++ object.
| def __del__(self):
"""
Free the memory used by the C++ object.
"""
if self.destructor and self._ptr:
try:
self.destructor(self.ptr)
except (AttributeError, ImportError, TypeError):
pass | [
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dumps | (obj, key=None, salt='django.core.signing', serializer=JSONSerializer, compress=False) |
Return URL-safe, hmac signed base64 compressed JSON string. If key is
None, use settings.SECRET_KEY instead. The hmac algorithm is the default
Signer algorithm.
If compress is True (not the default), check if compressing using zlib can
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Salt can be used to namespace the hash, so that a signed string is
only valid for a given namespace. Leaving this at the default
value or re-using a salt value across different parts of your
application without good cause is a security risk.
The serializer is expected to return a bytestring.
|
Return URL-safe, hmac signed base64 compressed JSON string. If key is
None, use settings.SECRET_KEY instead. The hmac algorithm is the default
Signer algorithm. | def dumps(obj, key=None, salt='django.core.signing', serializer=JSONSerializer, compress=False):
"""
Return URL-safe, hmac signed base64 compressed JSON string. If key is
None, use settings.SECRET_KEY instead. The hmac algorithm is the default
Signer algorithm.
If compress is True (not the default), check if compressing using zlib can
save some space. Prepend a '.' to signify compression. This is included
in the signature, to protect against zip bombs.
Salt can be used to namespace the hash, so that a signed string is
only valid for a given namespace. Leaving this at the default
value or re-using a salt value across different parts of your
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The serializer is expected to return a bytestring.
"""
return TimestampSigner(key, salt=salt).sign_object(obj, serializer=serializer, compress=compress) | [
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loads | (s, key=None, salt='django.core.signing', serializer=JSONSerializer, max_age=None) |
Reverse of dumps(), raise BadSignature if signature fails.
The serializer is expected to accept a bytestring.
|
Reverse of dumps(), raise BadSignature if signature fails. | def loads(s, key=None, salt='django.core.signing', serializer=JSONSerializer, max_age=None):
"""
Reverse of dumps(), raise BadSignature if signature fails.
The serializer is expected to accept a bytestring.
"""
return TimestampSigner(key, salt=salt).unsign_object(s, serializer=serializer, max_age=max_age) | [
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Signer.sign_object | (self, obj, serializer=JSONSerializer, compress=False) |
Return URL-safe, hmac signed base64 compressed JSON string.
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can save some space. Prepend a '.' to signify compression. This is
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|
Return URL-safe, hmac signed base64 compressed JSON string. | def sign_object(self, obj, serializer=JSONSerializer, compress=False):
"""
Return URL-safe, hmac signed base64 compressed JSON string.
If compress is True (not the default), check if compressing using zlib
can save some space. Prepend a '.' to signify compression. This is
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The serializer is expected to return a bytestring.
"""
data = serializer().dumps(obj)
# Flag for if it's been compressed or not.
is_compressed = False
if compress:
# Avoid zlib dependency unless compress is being used.
compressed = zlib.compress(data)
if len(compressed) < (len(data) - 1):
data = compressed
is_compressed = True
base64d = b64_encode(data).decode()
if is_compressed:
base64d = '.' + base64d
return self.sign(base64d) | [
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TimestampSigner.unsign | (self, value, max_age=None) |
Retrieve original value and check it wasn't signed more
than max_age seconds ago.
|
Retrieve original value and check it wasn't signed more
than max_age seconds ago.
| def unsign(self, value, max_age=None):
"""
Retrieve original value and check it wasn't signed more
than max_age seconds ago.
"""
result = super().unsign(value)
value, timestamp = result.rsplit(self.sep, 1)
timestamp = baseconv.base62.decode(timestamp)
if max_age is not None:
if isinstance(max_age, datetime.timedelta):
max_age = max_age.total_seconds()
# Check timestamp is not older than max_age
age = time.time() - timestamp
if age > max_age:
raise SignatureExpired(
'Signature age %s > %s seconds' % (age, max_age))
return value | [
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DatabaseIntrospection.get_table_list | (self, cursor) | Return a list of table and view names in the current database. | Return a list of table and view names in the current database. | def get_table_list(self, cursor):
"""Return a list of table and view names in the current database."""
cursor.execute("""
SELECT table_name, 't'
FROM user_tables
WHERE
NOT EXISTS (
SELECT 1
FROM user_mviews
WHERE user_mviews.mview_name = user_tables.table_name
)
UNION ALL
SELECT view_name, 'v' FROM user_views
UNION ALL
SELECT mview_name, 'v' FROM user_mviews
""")
return [TableInfo(self.identifier_converter(row[0]), row[1]) for row in cursor.fetchall()] | [
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] | [
71,
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] | [
87,
98
] | python | en | ['en', 'en', 'en'] | True |
DatabaseIntrospection.get_table_description | (self, cursor, table_name) |
Return a description of the table with the DB-API cursor.description
interface.
|
Return a description of the table with the DB-API cursor.description
interface.
| def get_table_description(self, cursor, table_name):
"""
Return a description of the table with the DB-API cursor.description
interface.
"""
# user_tab_columns gives data default for columns
cursor.execute("""
SELECT
user_tab_cols.column_name,
user_tab_cols.data_default,
CASE
WHEN user_tab_cols.collation = user_tables.default_collation
THEN NULL
ELSE user_tab_cols.collation
END collation,
CASE
WHEN user_tab_cols.char_used IS NULL
THEN user_tab_cols.data_length
ELSE user_tab_cols.char_length
END as internal_size,
CASE
WHEN user_tab_cols.identity_column = 'YES' THEN 1
ELSE 0
END as is_autofield,
CASE
WHEN EXISTS (
SELECT 1
FROM user_json_columns
WHERE
user_json_columns.table_name = user_tab_cols.table_name AND
user_json_columns.column_name = user_tab_cols.column_name
)
THEN 1
ELSE 0
END as is_json
FROM user_tab_cols
LEFT OUTER JOIN
user_tables ON user_tables.table_name = user_tab_cols.table_name
WHERE user_tab_cols.table_name = UPPER(%s)
""", [table_name])
field_map = {
column: (internal_size, default if default != 'NULL' else None, collation, is_autofield, is_json)
for column, default, collation, internal_size, is_autofield, is_json in cursor.fetchall()
}
self.cache_bust_counter += 1
cursor.execute("SELECT * FROM {} WHERE ROWNUM < 2 AND {} > 0".format(
self.connection.ops.quote_name(table_name),
self.cache_bust_counter))
description = []
for desc in cursor.description:
name = desc[0]
internal_size, default, collation, is_autofield, is_json = field_map[name]
name = name % {} # cx_Oracle, for some reason, doubles percent signs.
description.append(FieldInfo(
self.identifier_converter(name), *desc[1:3], internal_size, desc[4] or 0,
desc[5] or 0, *desc[6:], default, collation, is_autofield, is_json,
))
return description | [
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] | [
146,
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] | python | en | ['en', 'error', 'th'] | False |
DatabaseIntrospection.identifier_converter | (self, name) | Identifier comparison is case insensitive under Oracle. | Identifier comparison is case insensitive under Oracle. | def identifier_converter(self, name):
"""Identifier comparison is case insensitive under Oracle."""
return name.lower() | [
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DatabaseIntrospection.get_relations | (self, cursor, table_name) |
Return a dictionary of {field_name: (field_name_other_table, other_table)}
representing all relationships to the given table.
|
Return a dictionary of {field_name: (field_name_other_table, other_table)}
representing all relationships to the given table.
| def get_relations(self, cursor, table_name):
"""
Return a dictionary of {field_name: (field_name_other_table, other_table)}
representing all relationships to the given table.
"""
table_name = table_name.upper()
cursor.execute("""
SELECT ca.column_name, cb.table_name, cb.column_name
FROM user_constraints, USER_CONS_COLUMNS ca, USER_CONS_COLUMNS cb
WHERE user_constraints.table_name = %s AND
user_constraints.constraint_name = ca.constraint_name AND
user_constraints.r_constraint_name = cb.constraint_name AND
ca.position = cb.position""", [table_name])
return {
self.identifier_converter(field_name): (
self.identifier_converter(rel_field_name),
self.identifier_converter(rel_table_name),
) for field_name, rel_table_name, rel_field_name in cursor.fetchall()
} | [
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183,
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] | [
202,
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] | python | en | ['en', 'error', 'th'] | False |
DatabaseIntrospection.get_constraints | (self, cursor, table_name) |
Retrieve any constraints or keys (unique, pk, fk, check, index) across
one or more columns.
|
Retrieve any constraints or keys (unique, pk, fk, check, index) across
one or more columns.
| def get_constraints(self, cursor, table_name):
"""
Retrieve any constraints or keys (unique, pk, fk, check, index) across
one or more columns.
"""
constraints = {}
# Loop over the constraints, getting PKs, uniques, and checks
cursor.execute("""
SELECT
user_constraints.constraint_name,
LISTAGG(LOWER(cols.column_name), ',') WITHIN GROUP (ORDER BY cols.position),
CASE user_constraints.constraint_type
WHEN 'P' THEN 1
ELSE 0
END AS is_primary_key,
CASE
WHEN user_constraints.constraint_type IN ('P', 'U') THEN 1
ELSE 0
END AS is_unique,
CASE user_constraints.constraint_type
WHEN 'C' THEN 1
ELSE 0
END AS is_check_constraint
FROM
user_constraints
LEFT OUTER JOIN
user_cons_columns cols ON user_constraints.constraint_name = cols.constraint_name
WHERE
user_constraints.constraint_type = ANY('P', 'U', 'C')
AND user_constraints.table_name = UPPER(%s)
GROUP BY user_constraints.constraint_name, user_constraints.constraint_type
""", [table_name])
for constraint, columns, pk, unique, check in cursor.fetchall():
constraint = self.identifier_converter(constraint)
constraints[constraint] = {
'columns': columns.split(','),
'primary_key': pk,
'unique': unique,
'foreign_key': None,
'check': check,
'index': unique, # All uniques come with an index
}
# Foreign key constraints
cursor.execute("""
SELECT
cons.constraint_name,
LISTAGG(LOWER(cols.column_name), ',') WITHIN GROUP (ORDER BY cols.position),
LOWER(rcols.table_name),
LOWER(rcols.column_name)
FROM
user_constraints cons
INNER JOIN
user_cons_columns rcols ON rcols.constraint_name = cons.r_constraint_name AND rcols.position = 1
LEFT OUTER JOIN
user_cons_columns cols ON cons.constraint_name = cols.constraint_name
WHERE
cons.constraint_type = 'R' AND
cons.table_name = UPPER(%s)
GROUP BY cons.constraint_name, rcols.table_name, rcols.column_name
""", [table_name])
for constraint, columns, other_table, other_column in cursor.fetchall():
constraint = self.identifier_converter(constraint)
constraints[constraint] = {
'primary_key': False,
'unique': False,
'foreign_key': (other_table, other_column),
'check': False,
'index': False,
'columns': columns.split(','),
}
# Now get indexes
cursor.execute("""
SELECT
ind.index_name,
LOWER(ind.index_type),
LISTAGG(LOWER(cols.column_name), ',') WITHIN GROUP (ORDER BY cols.column_position),
LISTAGG(cols.descend, ',') WITHIN GROUP (ORDER BY cols.column_position)
FROM
user_ind_columns cols, user_indexes ind
WHERE
cols.table_name = UPPER(%s) AND
NOT EXISTS (
SELECT 1
FROM user_constraints cons
WHERE ind.index_name = cons.index_name
) AND cols.index_name = ind.index_name
GROUP BY ind.index_name, ind.index_type
""", [table_name])
for constraint, type_, columns, orders in cursor.fetchall():
constraint = self.identifier_converter(constraint)
constraints[constraint] = {
'primary_key': False,
'unique': False,
'foreign_key': None,
'check': False,
'index': True,
'type': 'idx' if type_ == 'normal' else type_,
'columns': columns.split(','),
'orders': orders.split(','),
}
return constraints | [
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334,
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] | python | en | ['en', 'error', 'th'] | False |
resolve_ctx | (cli, prog_name, args) |
Parse into a hierarchy of contexts. Contexts are connected through the parent variable.
:param cli: command definition
:param prog_name: the program that is running
:param args: full list of args
:return: the final context/command parsed
|
Parse into a hierarchy of contexts. Contexts are connected through the parent variable.
:param cli: command definition
:param prog_name: the program that is running
:param args: full list of args
:return: the final context/command parsed
| def resolve_ctx(cli, prog_name, args):
"""
Parse into a hierarchy of contexts. Contexts are connected through the parent variable.
:param cli: command definition
:param prog_name: the program that is running
:param args: full list of args
:return: the final context/command parsed
"""
ctx = cli.make_context(prog_name, args, resilient_parsing=True)
args = ctx.protected_args + ctx.args
while args:
if isinstance(ctx.command, MultiCommand):
if not ctx.command.chain:
cmd_name, cmd, args = ctx.command.resolve_command(ctx, args)
if cmd is None:
return ctx
ctx = cmd.make_context(cmd_name, args, parent=ctx,
resilient_parsing=True)
args = ctx.protected_args + ctx.args
else:
# Walk chained subcommand contexts saving the last one.
while args:
cmd_name, cmd, args = ctx.command.resolve_command(ctx, args)
if cmd is None:
return ctx
sub_ctx = cmd.make_context(cmd_name, args, parent=ctx,
allow_extra_args=True,
allow_interspersed_args=False,
resilient_parsing=True)
args = sub_ctx.args
ctx = sub_ctx
args = sub_ctx.protected_args + sub_ctx.args
else:
break
return ctx | [
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start_of_option | (param_str) |
:param param_str: param_str to check
:return: whether or not this is the start of an option declaration (i.e. starts "-" or "--")
|
:param param_str: param_str to check
:return: whether or not this is the start of an option declaration (i.e. starts "-" or "--")
| def start_of_option(param_str):
"""
:param param_str: param_str to check
:return: whether or not this is the start of an option declaration (i.e. starts "-" or "--")
"""
return param_str and param_str[:1] == '-' | [
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] | python | en | ['en', 'error', 'th'] | False |
is_incomplete_option | (all_args, cmd_param) |
:param all_args: the full original list of args supplied
:param cmd_param: the current command paramter
:return: whether or not the last option declaration (i.e. starts "-" or "--") is incomplete and
corresponds to this cmd_param. In other words whether this cmd_param option can still accept
values
|
:param all_args: the full original list of args supplied
:param cmd_param: the current command paramter
:return: whether or not the last option declaration (i.e. starts "-" or "--") is incomplete and
corresponds to this cmd_param. In other words whether this cmd_param option can still accept
values
| def is_incomplete_option(all_args, cmd_param):
"""
:param all_args: the full original list of args supplied
:param cmd_param: the current command paramter
:return: whether or not the last option declaration (i.e. starts "-" or "--") is incomplete and
corresponds to this cmd_param. In other words whether this cmd_param option can still accept
values
"""
if not isinstance(cmd_param, Option):
return False
if cmd_param.is_flag:
return False
last_option = None
for index, arg_str in enumerate(reversed([arg for arg in all_args if arg != WORDBREAK])):
if index + 1 > cmd_param.nargs:
break
if start_of_option(arg_str):
last_option = arg_str
return True if last_option and last_option in cmd_param.opts else False | [
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129,
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] | [
148,
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] | python | en | ['en', 'error', 'th'] | False |
is_incomplete_argument | (current_params, cmd_param) |
:param current_params: the current params and values for this argument as already entered
:param cmd_param: the current command parameter
:return: whether or not the last argument is incomplete and corresponds to this cmd_param. In
other words whether or not the this cmd_param argument can still accept values
|
:param current_params: the current params and values for this argument as already entered
:param cmd_param: the current command parameter
:return: whether or not the last argument is incomplete and corresponds to this cmd_param. In
other words whether or not the this cmd_param argument can still accept values
| def is_incomplete_argument(current_params, cmd_param):
"""
:param current_params: the current params and values for this argument as already entered
:param cmd_param: the current command parameter
:return: whether or not the last argument is incomplete and corresponds to this cmd_param. In
other words whether or not the this cmd_param argument can still accept values
"""
if not isinstance(cmd_param, Argument):
return False
current_param_values = current_params[cmd_param.name]
if current_param_values is None:
return True
if cmd_param.nargs == -1:
return True
if isinstance(current_param_values, abc.Iterable) \
and cmd_param.nargs > 1 and len(current_param_values) < cmd_param.nargs:
return True
return False | [
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151,
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168,
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] | python | en | ['en', 'error', 'th'] | False |
get_user_autocompletions | (ctx, args, incomplete, cmd_param) |
:param ctx: context associated with the parsed command
:param args: full list of args
:param incomplete: the incomplete text to autocomplete
:param cmd_param: command definition
:return: all the possible user-specified completions for the param
|
:param ctx: context associated with the parsed command
:param args: full list of args
:param incomplete: the incomplete text to autocomplete
:param cmd_param: command definition
:return: all the possible user-specified completions for the param
| def get_user_autocompletions(ctx, args, incomplete, cmd_param):
"""
:param ctx: context associated with the parsed command
:param args: full list of args
:param incomplete: the incomplete text to autocomplete
:param cmd_param: command definition
:return: all the possible user-specified completions for the param
"""
results = []
if isinstance(cmd_param.type, Choice):
# Choices don't support descriptions.
results = [(c, None)
for c in cmd_param.type.choices if str(c).startswith(incomplete)]
elif cmd_param.autocompletion is not None:
dynamic_completions = cmd_param.autocompletion(ctx=ctx,
args=args,
incomplete=incomplete)
results = [c if isinstance(c, tuple) else (c, None)
for c in dynamic_completions]
return results | [
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171,
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] | [
190,
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] | python | en | ['en', 'error', 'th'] | False |
get_visible_commands_starting_with | (ctx, starts_with) |
:param ctx: context associated with the parsed command
:starts_with: string that visible commands must start with.
:return: all visible (not hidden) commands that start with starts_with.
|
:param ctx: context associated with the parsed command
:starts_with: string that visible commands must start with.
:return: all visible (not hidden) commands that start with starts_with.
| def get_visible_commands_starting_with(ctx, starts_with):
"""
:param ctx: context associated with the parsed command
:starts_with: string that visible commands must start with.
:return: all visible (not hidden) commands that start with starts_with.
"""
for c in ctx.command.list_commands(ctx):
if c.startswith(starts_with):
command = ctx.command.get_command(ctx, c)
if not command.hidden:
yield command | [
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193,
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] | [
203,
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] | python | en | ['en', 'error', 'th'] | False |
get_choices | (cli, prog_name, args, incomplete) |
:param cli: command definition
:param prog_name: the program that is running
:param args: full list of args
:param incomplete: the incomplete text to autocomplete
:return: all the possible completions for the incomplete
|
:param cli: command definition
:param prog_name: the program that is running
:param args: full list of args
:param incomplete: the incomplete text to autocomplete
:return: all the possible completions for the incomplete
| def get_choices(cli, prog_name, args, incomplete):
"""
:param cli: command definition
:param prog_name: the program that is running
:param args: full list of args
:param incomplete: the incomplete text to autocomplete
:return: all the possible completions for the incomplete
"""
all_args = copy.deepcopy(args)
ctx = resolve_ctx(cli, prog_name, args)
if ctx is None:
return []
# In newer versions of bash long opts with '='s are partitioned, but it's easier to parse
# without the '='
if start_of_option(incomplete) and WORDBREAK in incomplete:
partition_incomplete = incomplete.partition(WORDBREAK)
all_args.append(partition_incomplete[0])
incomplete = partition_incomplete[2]
elif incomplete == WORDBREAK:
incomplete = ''
completions = []
if start_of_option(incomplete):
# completions for partial options
for param in ctx.command.params:
if isinstance(param, Option) and not param.hidden:
param_opts = [param_opt for param_opt in param.opts +
param.secondary_opts if param_opt not in all_args or param.multiple]
completions.extend([(o, param.help) for o in param_opts if o.startswith(incomplete)])
return completions
# completion for option values from user supplied values
for param in ctx.command.params:
if is_incomplete_option(all_args, param):
return get_user_autocompletions(ctx, all_args, incomplete, param)
# completion for argument values from user supplied values
for param in ctx.command.params:
if is_incomplete_argument(ctx.params, param):
return get_user_autocompletions(ctx, all_args, incomplete, param)
add_subcommand_completions(ctx, incomplete, completions)
# Sort before returning so that proper ordering can be enforced in custom types.
return sorted(completions) | [
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] | [
264,
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] | python | en | ['en', 'error', 'th'] | False |
voice | () | Respond to incoming calls with a simple text message. | Respond to incoming calls with a simple text message. | def voice():
"""Respond to incoming calls with a simple text message."""
resp = VoiceResponse()
resp.say("Hello. It's me.")
resp.play("http://howtodocs.s3.amazonaws.com/ahoyhoy.mp3")
return str(resp) | [
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default_test_processes | () | Default number of test processes when using the --parallel option. | Default number of test processes when using the --parallel option. | def default_test_processes():
"""Default number of test processes when using the --parallel option."""
# The current implementation of the parallel test runner requires
# multiprocessing to start subprocesses with fork().
if multiprocessing.get_start_method() != 'fork':
return 1
try:
return int(os.environ['DJANGO_TEST_PROCESSES'])
except KeyError:
return multiprocessing.cpu_count() | [
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] | python | en | ['en', 'en', 'en'] | True |