New submission from Marcus von Appen: ctypes.util.find_library does not seem to be able to find certain libraries in Python3.3 on Win32 platforms anymore, if the library suffix is omitted. For some reason, os.path.isfile() in ctypes.util.find_library returns False in those cases.
Please try out the attached test script. This produces the following output on a Windows 7 x64 system for me (given that a OpenAL32.dll is installed): C:\>c:\Python27-x64\python.exe ct_test.py Python build: 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit (AMD64)] Path 'C:\Windows\system32' exists in $PATH: True File 'C:\Windows\system32\OpenAL32.dll' exists: True ctypes says for 'OpenAL32.dll': C:\Windows\system32\OpenAL32.dll ctypes says for 'OpenAL32': C:\Windows\system32\OpenAL32.dll C:\>c:\Python31-x64\python.exe ct_test.py Python build: 3.1.4 (default, Jun 12 2011, 14:16:16) [MSC v.1500 64 bit (AMD64)] Path 'C:\Windows\system32' exists in $PATH: True File 'C:\Windows\system32\OpenAL32.dll' exists: True ctypes says for 'OpenAL32.dll': C:\Windows\system32\OpenAL32.dll ctypes says for 'OpenAL32': C:\Windows\system32\OpenAL32.dll C:\>c:\Python32-x64\python.exe ct_test.py Python build: 3.2.3 (default, Apr 11 2012, 07:12:16) [MSC v.1500 64 bit (AMD64)] Path 'C:\Windows\system32' exists in $PATH: True File 'C:\Windows\system32\OpenAL32.dll' exists: True ctypes says for 'OpenAL32.dll': C:\Windows\system32\OpenAL32.dll ctypes says for 'OpenAL32': C:\Windows\system32\OpenAL32.dll C:\>c:\Python33-x64\python.exe ct_test.py Python build: 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 10:57:17) [MSC v.1600 64 bit (AMD64)] Path 'C:\Windows\system32' exists in $PATH: True File 'C:\Windows\system32\OpenAL32.dll' exists: True ctypes says for 'OpenAL32.dll': C:\Windows\system32\OpenAL32.dll ctypes says for 'OpenAL32': None ---------- components: ctypes files: ct_test.py messages: 173315 nosy: marcusva priority: normal severity: normal status: open title: ctypes.util.find_library does not find all DLLs anymore type: behavior versions: Python 3.3 Added file: http://bugs.python.org/file27618/ct_test.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue16283> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
