Spaces:
Sleeping
Sleeping
File size: 5,591 Bytes
69d9940 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 |
import re
import functools
import distutils.core
import distutils.errors
import distutils.extension
from .monkey import get_unpatched
def _have_cython():
"""
Return True if Cython can be imported.
"""
cython_impl = 'Cython.Distutils.build_ext'
try:
# from (cython_impl) import build_ext
__import__(cython_impl, fromlist=['build_ext']).build_ext
return True
except Exception:
pass
return False
# for compatibility
have_pyrex = _have_cython
_Extension = get_unpatched(distutils.core.Extension)
class Extension(_Extension):
"""
Describes a single extension module.
This means that all source files will be compiled into a single binary file
``<module path>.<suffix>`` (with ``<module path>`` derived from ``name`` and
``<suffix>`` defined by one of the values in
``importlib.machinery.EXTENSION_SUFFIXES``).
In the case ``.pyx`` files are passed as ``sources and`` ``Cython`` is **not**
installed in the build environment, ``setuptools`` may also try to look for the
equivalent ``.cpp`` or ``.c`` files.
:arg str name:
the full name of the extension, including any packages -- ie.
*not* a filename or pathname, but Python dotted name
:arg list[str] sources:
list of source filenames, relative to the distribution root
(where the setup script lives), in Unix form (slash-separated)
for portability. Source files may be C, C++, SWIG (.i),
platform-specific resource files, or whatever else is recognized
by the "build_ext" command as source for a Python extension.
:keyword list[str] include_dirs:
list of directories to search for C/C++ header files (in Unix
form for portability)
:keyword list[tuple[str, str|None]] define_macros:
list of macros to define; each macro is defined using a 2-tuple:
the first item corresponding to the name of the macro and the second
item either a string with its value or None to
define it without a particular value (equivalent of "#define
FOO" in source or -DFOO on Unix C compiler command line)
:keyword list[str] undef_macros:
list of macros to undefine explicitly
:keyword list[str] library_dirs:
list of directories to search for C/C++ libraries at link time
:keyword list[str] libraries:
list of library names (not filenames or paths) to link against
:keyword list[str] runtime_library_dirs:
list of directories to search for C/C++ libraries at run time
(for shared extensions, this is when the extension is loaded).
Setting this will cause an exception during build on Windows
platforms.
:keyword list[str] extra_objects:
list of extra files to link with (eg. object files not implied
by 'sources', static library that must be explicitly specified,
binary resource files, etc.)
:keyword list[str] extra_compile_args:
any extra platform- and compiler-specific information to use
when compiling the source files in 'sources'. For platforms and
compilers where "command line" makes sense, this is typically a
list of command-line arguments, but for other platforms it could
be anything.
:keyword list[str] extra_link_args:
any extra platform- and compiler-specific information to use
when linking object files together to create the extension (or
to create a new static Python interpreter). Similar
interpretation as for 'extra_compile_args'.
:keyword list[str] export_symbols:
list of symbols to be exported from a shared extension. Not
used on all platforms, and not generally necessary for Python
extensions, which typically export exactly one symbol: "init" +
extension_name.
:keyword list[str] swig_opts:
any extra options to pass to SWIG if a source file has the .i
extension.
:keyword list[str] depends:
list of files that the extension depends on
:keyword str language:
extension language (i.e. "c", "c++", "objc"). Will be detected
from the source extensions if not provided.
:keyword bool optional:
specifies that a build failure in the extension should not abort the
build process, but simply not install the failing extension.
:keyword bool py_limited_api:
opt-in flag for the usage of :doc:`Python's limited API <python:c-api/stable>`.
:raises setuptools.errors.PlatformError: if 'runtime_library_dirs' is
specified on Windows. (since v63)
"""
def __init__(self, name, sources, *args, **kw):
# The *args is needed for compatibility as calls may use positional
# arguments. py_limited_api may be set only via keyword.
self.py_limited_api = kw.pop("py_limited_api", False)
super().__init__(name, sources, *args, **kw)
def _convert_pyx_sources_to_lang(self):
"""
Replace sources with .pyx extensions to sources with the target
language extension. This mechanism allows language authors to supply
pre-converted sources but to prefer the .pyx sources.
"""
if _have_cython():
# the build has Cython, so allow it to compile the .pyx files
return
lang = self.language or ''
target_ext = '.cpp' if lang.lower() == 'c++' else '.c'
sub = functools.partial(re.sub, '.pyx$', target_ext)
self.sources = list(map(sub, self.sources))
class Library(Extension):
"""Just like a regular Extension, but built as a library instead"""
|