You should look up whatever equivalent of LD_LIBRARY_PATH that exists in
Windows. I've forgotten where it is but that's your problem. The geos dll
needs to be in the library path of the wsgi executable
On Jul 16, 2013 11:03 AM, "Harasty, Daniel J" <dhara...@appcomsci.com>
wrote:
> I realize that – strictly speaking – this is probably not a bug in
> Shapely, but I would appreciate any advice.****
>
> ** **
>
> I’d like to use Shapely in this environment:****
>
> ** **
>
> **· **In a Python script implementing a WSGI application****
>
> **· **Deployed on Windows behind Apache httpd 2.x****
>
> ** **
>
> Alas, I get this error logged by Apache:****
>
> ** **
>
> **· **WindowsError: [Error 126] The specified module could not be
> found****
>
> ** **
>
> The traceback reveals a problem loading the “geos_c.dll”:****
>
> ** **
>
> File "C:\\Python\\Python26\\lib\\site-packages\\shapely\\geos.py", line
> 76, in <module>****
>
> _lgeos = CDLL("geos_c.dll") # DJH****
>
> File "C:\\Python\\Python26\\lib\\ctypes\\__init__.py", line 354, in
> __init__****
>
> self._handle = _dlopen(self._name, mode)****
>
> ** **
>
> This is thrown immediately upon “import shapely.wkb”, or any other Shapely
> library that imports shapely.geos.****
>
> ** **
>
> This has the smell of some sort of “path problem”, but I have fiddled with
> every possible PATH and PYTHONPATH setting both inside and outside of
> Apache.****
>
> ** **
>
> I can repeat this in a diminutive app (not only my larger application),
> which shows that even loading nothing else, I can trip this error. I’d be
> willing to post/share my sample code and fragment from my Apache conf… but
> you’d have to already have some familiarity with Apache and Python WSGI on
> Windows for it to mean much.****
>
> ** **
>
> Note that calling similar script (using Shapely) as a CGI (behind Apache)
> work fine. So this sounds like a DLL loading problem peculiar to
> Windows+Apache+mod_wsgi. (Not a Shapely or geos_c.dll bug, per se.)
> However, none of my other Python+WSGI+Window+Apache scripts are having the
> same problem.****
>
> ** **
>
> Any advice?****
>
> ** **
>
> Thanks,****
>
> ** **
>
> Dan Harasty****
>
> dhara...@appcomsci.com****
>
> ** **
>
> ** **
>
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