https://github.com/python/cpython/commit/7fc51c3f6b7b13f88480557ff14bdb1c049f9a37
commit: 7fc51c3f6b7b13f88480557ff14bdb1c049f9a37
branch: main
author: AN Long <[email protected]>
committer: serhiy-storchaka <[email protected]>
date: 2024-01-22T17:15:29Z
summary:
gh-114257: Ignore the FileNotFound error in ctypes.util._is_elf() (GH-114394)
files:
A Misc/NEWS.d/next/Library/2024-01-21-16-32-55.gh-issue-114257.bCFld5.rst
M Lib/ctypes/util.py
M Lib/test/test_ctypes/test_find.py
diff --git a/Lib/ctypes/util.py b/Lib/ctypes/util.py
index 0c2510e1619c8e..c550883e7c7d4b 100644
--- a/Lib/ctypes/util.py
+++ b/Lib/ctypes/util.py
@@ -96,8 +96,11 @@ def find_library(name):
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
diff --git a/Lib/test/test_ctypes/test_find.py
b/Lib/test/test_ctypes/test_find.py
index 66ff23e72b5e10..7732ff37308848 100644
--- a/Lib/test/test_ctypes/test_find.py
+++ b/Lib/test/test_ctypes/test_find.py
@@ -125,6 +125,9 @@ def test_find_library_with_ld(self):
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()
diff --git
a/Misc/NEWS.d/next/Library/2024-01-21-16-32-55.gh-issue-114257.bCFld5.rst
b/Misc/NEWS.d/next/Library/2024-01-21-16-32-55.gh-issue-114257.bCFld5.rst
new file mode 100644
index 00000000000000..6f02ff9e62617d
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-01-21-16-32-55.gh-issue-114257.bCFld5.rst
@@ -0,0 +1,2 @@
+Dismiss the :exc:`FileNotFound` error in :func:`ctypes.util.find_library` and
+just return ``None`` on Linux.
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