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- import sys
- import platform
- def add_ext_suffix_39(vars):
- """
- Ensure vars contains 'EXT_SUFFIX'. pypa/distutils#130
- """
- import _imp
- ext_suffix = _imp.extension_suffixes()[0]
- vars.update(
- EXT_SUFFIX=ext_suffix,
- # sysconfig sets SO to match EXT_SUFFIX, so maintain
- # that expectation.
- # https://github.com/python/cpython/blob/785cc6770588de087d09e89a69110af2542be208/Lib/sysconfig.py#L671-L673
- SO=ext_suffix,
- )
- needs_ext_suffix = sys.version_info < (3, 10) and platform.system() == 'Windows'
- add_ext_suffix = add_ext_suffix_39 if needs_ext_suffix else lambda vars: None
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