Ctypes Error: Why can't it find the DLL.
Mudcat
mnations at gmail.com
Tue Oct 24 13:40:30 EDT 2006
Hi,
I can't figure out why ctypes won't load the DLL I need to use. I've
tried everything I can find (and the ctypes website is down at the
moment). Here's what I've seen so far.
I've added the file arapi51.dll to the system32 directory. However
when I tried to access it I see this:
>>> print windll.arapi51 # doctest: +WINDOWS
Traceback (most recent call last):
File "<interactive input>", line 1, in ?
File "C:\Python24\Lib\site-packages\ctypes\__init__.py", line 387, in
__getattr__
dll = self._dlltype(name)
File "C:\Python24\Lib\site-packages\ctypes\__init__.py", line 312, in
__init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Errno 126] The specified module could not be found
So then I use the find_library function, and it finds it:
>>> find_library('arapi51.dll')
'C:\\WINNT\\system32\\arapi51.dll'
At that point I try to use the LoadLibrary function, but it still can't
find it:
>>> windll.LoadLibrary('C:\WINNT\system32\arapi51.dll')
Traceback (most recent call last):
File "<interactive input>", line 1, in ?
File "C:\Python24\Lib\site-packages\ctypes\__init__.py", line 395, in
LoadLibrary
return self._dlltype(name)
File "C:\Python24\Lib\site-packages\ctypes\__init__.py", line 312, in
__init__
self._handle = _dlopen(self._name, mode)
WindowsError: [Errno 126] The specified module could not be found
What am I doing wrong? I've used ctypes before and not had this
problem. Before, I've just added the file to the system32 directory and
not had this problem.
On another note, if I wanted to include these DLL's to be a part of an
installable package, how would I configure ctypes to use DLL's from a
local directory?
Thanks,
Marc
More information about the Python-list
mailing list