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gh-114257: Ignore the FileNotFound error in ctypes.util._is_elf() (GH-114394)

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AN Long 2024-01-23 01:15:29 +08:00 • committed by GitHub
parent ed30a3c337
commit 7fc51c3f6b
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3 changed files with 10 additions and 2 deletions
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7
Lib/ctypes/util.py
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@ -96,8 +96,11 @@ elif os.name == "posix":
def _is_elf(filename):
"Return True if the given file is an ELF file"
elf_header = b'\x7fELF'
with open(filename, 'br') as thefile:
return thefile.read(4) == elf_header
try:
with open(filename, 'br') as thefile:
return thefile.read(4) == elf_header
except FileNotFoundError:
return False
def _findLib_gcc(name):
# Run GCC's linker with the -t (aka --trace) option and examine the

3
Lib/test/test_ctypes/test_find.py
View file

@ -125,6 +125,9 @@ class FindLibraryLinux(unittest.TestCase):
unittest.mock.patch("ctypes.util._findLib_gcc", lambda *args: None):
self.assertNotEqual(find_library('c'), None)
def test_gh114257(self):
self.assertIsNone(find_library("libc"))
if __name__ == "__main__":
unittest.main()

2
Misc/NEWS.d/next/Library/2024-01-21-16-32-55.gh-issue-114257.bCFld5.rst Normal file
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@ -0,0 +1,2 @@
Dismiss the :exc:`FileNotFound` error in :func:`ctypes.util.find_library` and
just return ``None`` on Linux.