Mercurial > repos > shellac > sam_consensus_v3
comparison env/lib/python3.9/site-packages/setuptools/extension.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
| author | shellac |
|---|---|
| date | Mon, 22 Mar 2021 18:12:50 +0000 |
| parents | |
| children |
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| -1:000000000000 | 0:4f3585e2f14b |
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| 1 import re | |
| 2 import functools | |
| 3 import distutils.core | |
| 4 import distutils.errors | |
| 5 import distutils.extension | |
| 6 | |
| 7 from .monkey import get_unpatched | |
| 8 | |
| 9 | |
| 10 def _have_cython(): | |
| 11 """ | |
| 12 Return True if Cython can be imported. | |
| 13 """ | |
| 14 cython_impl = 'Cython.Distutils.build_ext' | |
| 15 try: | |
| 16 # from (cython_impl) import build_ext | |
| 17 __import__(cython_impl, fromlist=['build_ext']).build_ext | |
| 18 return True | |
| 19 except Exception: | |
| 20 pass | |
| 21 return False | |
| 22 | |
| 23 | |
| 24 # for compatibility | |
| 25 have_pyrex = _have_cython | |
| 26 | |
| 27 _Extension = get_unpatched(distutils.core.Extension) | |
| 28 | |
| 29 | |
| 30 class Extension(_Extension): | |
| 31 """Extension that uses '.c' files in place of '.pyx' files""" | |
| 32 | |
| 33 def __init__(self, name, sources, *args, **kw): | |
| 34 # The *args is needed for compatibility as calls may use positional | |
| 35 # arguments. py_limited_api may be set only via keyword. | |
| 36 self.py_limited_api = kw.pop("py_limited_api", False) | |
| 37 _Extension.__init__(self, name, sources, *args, **kw) | |
| 38 | |
| 39 def _convert_pyx_sources_to_lang(self): | |
| 40 """ | |
| 41 Replace sources with .pyx extensions to sources with the target | |
| 42 language extension. This mechanism allows language authors to supply | |
| 43 pre-converted sources but to prefer the .pyx sources. | |
| 44 """ | |
| 45 if _have_cython(): | |
| 46 # the build has Cython, so allow it to compile the .pyx files | |
| 47 return | |
| 48 lang = self.language or '' | |
| 49 target_ext = '.cpp' if lang.lower() == 'c++' else '.c' | |
| 50 sub = functools.partial(re.sub, '.pyx$', target_ext) | |
| 51 self.sources = list(map(sub, self.sources)) | |
| 52 | |
| 53 | |
| 54 class Library(Extension): | |
| 55 """Just like a regular Extension, but built as a library instead""" |