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Current Path : /proc/thread-self/root/opt/cloudlinux/venv/lib/python3.11/site-packages/setuptools/ |
Current File : //proc/thread-self/root/opt/cloudlinux/venv/lib/python3.11/site-packages/setuptools/extension.py |
from __future__ import annotations import functools import re from typing import TYPE_CHECKING from setuptools._path import StrPath from .monkey import get_unpatched import distutils.core import distutils.errors import distutils.extension 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 except Exception: return False return True # for compatibility have_pyrex = _have_cython if TYPE_CHECKING: # Work around a mypy issue where type[T] can't be used as a base: https://github.com/python/mypy/issues/10962 from distutils.core import Extension as _Extension else: _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|os.PathLike[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) """ # These 4 are set and used in setuptools/command/build_ext.py # The lack of a default value and risk of `AttributeError` is purposeful # to avoid people forgetting to call finalize_options if they modify the extension list. # See example/rationale in https://github.com/pypa/setuptools/issues/4529. _full_name: str #: Private API, internal use only. _links_to_dynamic: bool #: Private API, internal use only. _needs_stub: bool #: Private API, internal use only. _file_name: str #: Private API, internal use only. def __init__( self, name: str, sources: list[StrPath], *args, py_limited_api: bool = False, **kw, ) -> None: # 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 = py_limited_api super().__init__( name, sources, # type: ignore[arg-type] # Vendored version of setuptools supports PathLike *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"""