[python-win32] Problem with msvcr90.dll

Tefnet Developers developers at tefnet.pl
Mon Jan 31 12:54:48 CET 2011


Hi,

I am developing a msgina replacement.

I am at the point where I have the whole Gina API handled in python (a
dll written in C, calling methods of a python object).

My problem is that somehow my program cannot import pywin32 modules: 


Jan 31 12:12:41 p11 pygina: callproxy.caller:   File "c:\teflogon\system_nt.py", line 4, in <module>
Jan 31 12:12:41 p11 pygina: callproxy.caller:     import pywintypes
Jan 31 12:12:41 p11 pygina: callproxy.caller:   File "C:\Python26\lib\site-packages\win32\lib\pywintypes.py", line 124, in <module>
Jan 31 12:12:41 p11 pygina: callproxy.caller:     __import_pywin32_system_module__("pywintypes", globals())
Jan 31 12:12:41 p11 pygina: callproxy.caller:   File "C:\Python26\lib\site-packages\win32\lib\pywintypes.py", line 64, in __import_pywin32_system_module__
Jan 31 12:12:41 p11 pygina: callproxy.caller:     import _win32sysloader
Jan 31 12:12:41 p11 pygina: callproxy.caller: ImportError: DLL load failed: The specified module could not be found


I did a check and replaced the failing method with execution of
python.exe running the same code: 


        if __name__ != '__main__':
                subprocess.call(
                        [r'c:\python26\python.exe', r'c:\teflogon\tefgina.py', pMessage],
                )


And pywintypes gets imported fine there.

My dll is built using mingw, like this:
i586-mingw32msvc-gcc -L./lib -shared -Wl,--kill-at pygina.o -o
pygina.dll -lpython26

I thought it had something to do with msvcr90.dll, so I've tried the
following:

1. Adding -lmsvcr90 at the end of the linking command
2. Including a manifest in the dll:


$ cat pygina.dll.manifest
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
    <security>
      <requestedPrivileges>
        <requestedExecutionLevel level="asInvoker" uiAccess="false"></requestedExecutionLevel>
      </requestedPrivileges>
    </security>
  </trustInfo>
  <dependency>
    <dependentAssembly>
      <assemblyIdentity type="win32" name="Microsoft.VC90.CRT" version="9.0.21022.8" processorArchitecture="x86" publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity>
    </dependentAssembly>
  </dependency>

$ grep manifest pygina.rc.in
2 RT_MANIFEST pygina.dll.manifest

$


But it did not change a thing.

So the question is - why can python.exe load pywin32 modules and my dll
cannot?

I have been stuck with this for a couple of days now and any pointers
would be great :).


Thanks,
Filip Zyzniewski
Tefnet 
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