Title: ctypes.util.find_library raises FileNotFoundError for libsecp256k1 · Issue #93094 · python/cpython · GitHub
Open Graph Title: ctypes.util.find_library raises FileNotFoundError for libsecp256k1 · Issue #93094 · python/cpython
X Title: ctypes.util.find_library raises FileNotFoundError for libsecp256k1 · Issue #93094 · python/cpython
Description: Bug report The following script import ctypes from ctypes import util print(f'ctypes version {ctypes.__version__}') print('Test foofoofoo') print(f"returns: {util.find_library('foofoofoo')}\n") print('Test secp256k1') print(f"returns: {u...
Open Graph Description: Bug report The following script import ctypes from ctypes import util print(f'ctypes version {ctypes.__version__}') print('Test foofoofoo') print(f"returns: {util.find_library('foofoofoo')}\n") pri...
X Description: Bug report The following script import ctypes from ctypes import util print(f'ctypes version {ctypes.__version__}') print('Test foofoofoo') print(f"returns: {util.find_library(...
Opengraph URL: https://github.com/python/cpython/issues/93094
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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ctypes.util.find_library raises FileNotFoundError for libsecp256k1","articleBody":"**Bug report**\r\n\r\nThe following script \r\n```\r\nimport ctypes\r\nfrom ctypes import util\r\n\r\nprint(f'ctypes version {ctypes.__version__}')\r\n\r\n\r\nprint('Test foofoofoo')\r\nprint(f\"returns: {util.find_library('foofoofoo')}\\n\")\r\n\r\nprint('Test secp256k1')\r\nprint(f\"returns: {util.find_library('secp256k1')}\\n\")\r\n\r\nprint('Test libsecp256k1')\r\nprint(f\"returns: {util.find_library('libsecp256k1')}\\n\")\r\n\r\n```\r\ngives the output:\r\n```\r\nctypes version 1.1.0\r\nTest foofoofoo\r\nreturns: None\r\n\r\nTest secp256k1\r\nreturns: libsecp256k1.so.0\r\n\r\nTest libsecp256k1\r\nTraceback (most recent call last):\r\n File \"/home/\u003cuser\u003e/programs/testctypes.py\", line 14, in \u003cmodule\u003e\r\n print(f\"returns: {util.find_library('libsecp256k1')}\\n\")\r\n File \"/home/\u003cuser\u003e/programs/anaconda3/envs/python310/lib/python3.10/ctypes/util.py\", line 351, in find_library\r\n _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))\r\n File \"/home/\u003cuser\u003e/programs/anaconda3/envs/python310/lib/python3.10/ctypes/util.py\", line 148, in _findLib_gcc\r\n if not _is_elf(file):\r\n File \"/home/\u003cuser\u003e/programs/anaconda3/envs/python310/lib/python3.10/ctypes/util.py\", line 100, in _is_elf\r\n with open(filename, 'br') as thefile:\r\nFileNotFoundError: [Errno 2] No such file or directory: b'liblibsecp256k1.a'\r\n```\r\n\r\n`find_library` should not fail, but return `None` if nothing was found. In Ubuntu 20.04 this script runs without any exception. \r\n\r\n**Your environment**\r\n\r\n- ctypes version 1.1.0\r\n- Operating system and architecture: Kubuntu 22.04 LTS x86_64, linux 5.15.0-27-generic \r\n- Bug can be reproduced in python versions: python 3.10 (via anaconda and via ubuntu deb repositories), python 3.8 (via anaconda)\r\n- The installed `libsecp256k1` packages are \r\n\r\n\r\n\r\n contains the files\r\n```\r\n/.\r\n/usr\r\n/usr/lib\r\n/usr/lib/x86_64-linux-gnu\r\n/usr/lib/x86_64-linux-gnu/libsecp256k1.so.0\r\n/usr/lib/x86_64-linux-gnu/libsecp256k1.so.0.0.0\r\n/usr/share\r\n/usr/share/doc\r\n/usr/share/doc/libsecp256k1-0\r\n/usr/share/doc/libsecp256k1-0/changelog.Debian.gz\r\n/usr/share/doc/libsecp256k1-0/copyright\r\n```\r\nAnd  contains the files\r\n```\r\n/.\r\n/usr\r\n/usr/include\r\n/usr/include/secp256k1.h\r\n/usr/include/secp256k1_ecdh.h\r\n/usr/include/secp256k1_extrakeys.h\r\n/usr/include/secp256k1_preallocated.h\r\n/usr/include/secp256k1_recovery.h\r\n/usr/include/secp256k1_schnorrsig.h\r\n/usr/lib\r\n/usr/lib/x86_64-linux-gnu\r\n/usr/lib/x86_64-linux-gnu/libsecp256k1.a\r\n/usr/lib/x86_64-linux-gnu/libsecp256k1.so\r\n/usr/lib/x86_64-linux-gnu/pkgconfig\r\n/usr/lib/x86_64-linux-gnu/pkgconfig/libsecp256k1.pc\r\n/usr/share\r\n/usr/share/doc\r\n/usr/share/doc/libsecp256k1-dev\r\n/usr/share/doc/libsecp256k1-dev/changelog.Debian.gz\r\n/usr/share/doc/libsecp256k1-dev/copyright\r\n\r\n```\r\nAnd in `/usr/lib/x86_64-linux-gnu/` are the following relevant files containing `secp256k1:`\r\n\r\n\r\n\r\n\r\n This bug was noticed in https://github.com/cryptoadvance/specter-desktop/issues/1710","author":{"url":"https://github.com/relativisticelectron","@type":"Person","name":"relativisticelectron"},"datePublished":"2022-05-23T08:44:51.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/93094/cpython/issues/93094"}| route-pattern | /_view_fragments/issues/show/:user_id/:repository/:id/issue_layout(.:format) |
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| og:image:alt | Bug report The following script import ctypes from ctypes import util print(f'ctypes version {ctypes.__version__}') print('Test foofoofoo') print(f"returns: {util.find_library('foofoofoo')}\n") pri... |
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