Handle dlopen(NULL) failure in glibc fallback #12716
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charliermarsh
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charliermarsh
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May 20, 2024
| @@ -50,7 +63,7 @@ def glibc_version_string_ctypes() -> Optional[str]: | |||
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| # Call gnu_get_libc_version, which returns a string like "2.5" | |||
| gnu_get_libc_version.restype = ctypes.c_char_p | |||
| version_str = gnu_get_libc_version() | |||
| version_str: str = gnu_get_libc_version() | |||
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I just copied over the full _glibc_version_string_ctypes from _manylinux.py, and this was the only other change. I can back it out if desired.
This was referenced May 20, 2024
uranusjr
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May 20, 2024
ichard26
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Jul 4, 2024
Co-authored-by: Richard Si <sichard26@gmail.com>
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Thanks @charliermarsh! |
jsirois
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Co-authored-by: Pradyun Gedam <pradyunsg@gmail.com>
jsirois
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This pulls in a new vendored version of Pip with the recent fix in pypa/pip#12716 applied in pex-tool/pip#13. As a result, Pex can run using vendored Pip under statically linked musl libc CPython interpreters. This opens the door to bootstrapping newer unpatched Pip's that also have this same fix (versions 24.2 and later; see: #2471). Fixes #2017
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Summary
This PR applies the same exception handling to
ctypes.CDLL(None)that already exists for the analogous method in packaging: pypa/packaging#294 (and, similarly, in pip's vendored packaging -- seesrc/pip/_vendor/packaging/_manylinux.py).The basic idea is that if you're using a Python distribution built against musl libc,
dlopenwill fail (in addition toimport ctypesitself failing).Also relevant is indygreg@5139dc4 and #6543, where @indeygreg added the original
try-exceptforctypes.