Mercurial > repos > bcclaywell > argo_navis
comparison venv/lib/python2.7/site-packages/setuptools/extension.py @ 0:d67268158946 draft
planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
| author | bcclaywell |
|---|---|
| date | Mon, 12 Oct 2015 17:43:33 -0400 |
| parents | |
| children |
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| -1:000000000000 | 0:d67268158946 |
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| 1 import sys | |
| 2 import re | |
| 3 import functools | |
| 4 import distutils.core | |
| 5 import distutils.errors | |
| 6 import distutils.extension | |
| 7 | |
| 8 from .dist import _get_unpatched | |
| 9 from . import msvc9_support | |
| 10 | |
| 11 _Extension = _get_unpatched(distutils.core.Extension) | |
| 12 | |
| 13 msvc9_support.patch_for_specialized_compiler() | |
| 14 | |
| 15 def have_pyrex(): | |
| 16 """ | |
| 17 Return True if Cython or Pyrex can be imported. | |
| 18 """ | |
| 19 pyrex_impls = 'Cython.Distutils.build_ext', 'Pyrex.Distutils.build_ext' | |
| 20 for pyrex_impl in pyrex_impls: | |
| 21 try: | |
| 22 # from (pyrex_impl) import build_ext | |
| 23 __import__(pyrex_impl, fromlist=['build_ext']).build_ext | |
| 24 return True | |
| 25 except Exception: | |
| 26 pass | |
| 27 return False | |
| 28 | |
| 29 | |
| 30 class Extension(_Extension): | |
| 31 """Extension that uses '.c' files in place of '.pyx' files""" | |
| 32 | |
| 33 def __init__(self, *args, **kw): | |
| 34 _Extension.__init__(self, *args, **kw) | |
| 35 self._convert_pyx_sources_to_lang() | |
| 36 | |
| 37 def _convert_pyx_sources_to_lang(self): | |
| 38 """ | |
| 39 Replace sources with .pyx extensions to sources with the target | |
| 40 language extension. This mechanism allows language authors to supply | |
| 41 pre-converted sources but to prefer the .pyx sources. | |
| 42 """ | |
| 43 if have_pyrex(): | |
| 44 # the build has Cython, so allow it to compile the .pyx files | |
| 45 return | |
| 46 lang = self.language or '' | |
| 47 target_ext = '.cpp' if lang.lower() == 'c++' else '.c' | |
| 48 sub = functools.partial(re.sub, '.pyx$', target_ext) | |
| 49 self.sources = list(map(sub, self.sources)) | |
| 50 | |
| 51 class Library(Extension): | |
| 52 """Just like a regular Extension, but built as a library instead""" | |
| 53 | |
| 54 distutils.core.Extension = Extension | |
| 55 distutils.extension.Extension = Extension | |
| 56 if 'distutils.command.build_ext' in sys.modules: | |
| 57 sys.modules['distutils.command.build_ext'].Extension = Extension |