/usr/lib/python3/dist-packages/setuptools/extension.py is in python3-setuptools 39.0.1-2.
This file is owned by root:root, with mode 0o644.
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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 | import re
import functools
import distutils.core
import distutils.errors
import distutils.extension
from setuptools.extern.six.moves import map
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):
"""Extension that uses '.c' files in place of '.pyx' files"""
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)
_Extension.__init__(self, 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"""
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