mirror of https://github.com/python/cpython
52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
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from distutils.core import Extension as _Extension
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from distutils.core import Distribution as _Distribution
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def _get_unpatched(cls):
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"""Protect against re-patching the distutils if reloaded
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Also ensures that no other distutils extension monkeypatched the distutils
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first.
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"""
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while cls.__module__.startswith('setuptools'):
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cls, = cls.__bases__
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if not cls.__module__.startswith('distutils'):
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raise AssertionError(
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"distutils has already been patched by %r" % cls
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)
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return cls
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_Distribution = _get_unpatched(_Distribution)
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_Extension = _get_unpatched(_Extension)
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try:
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from Pyrex.Distutils.build_ext import build_ext
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except ImportError:
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have_pyrex = False
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else:
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have_pyrex = True
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class Extension(_Extension):
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"""Extension that uses '.c' files in place of '.pyx' files"""
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if not have_pyrex:
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# convert .pyx extensions to .c
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def __init__(self,*args,**kw):
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_Extension.__init__(self,*args,**kw)
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sources = []
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for s in self.sources:
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if s.endswith('.pyx'):
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sources.append(s[:-3]+'c')
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else:
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sources.append(s)
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self.sources = sources
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class Library(Extension):
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"""Just like a regular Extension, but built as a library instead"""
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import sys, distutils.core, distutils.extension
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distutils.core.Extension = Extension
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distutils.extension.Extension = Extension
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if 'distutils.command.build_ext' in sys.modules:
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sys.modules['distutils.command.build_ext'].Extension = Extension
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