Author eryksun
Recipients carlkl, erik flister, eryksun, paul.moore, steve.dower, tim.golden, zach.ware
Date 2015-06-18.18:29:18
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Message-id <1434652158.8.0.939038976161.issue24429@psf.upfronthosting.co.za>
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> shapely's installation instructions from windows are to use 
> chris gohlke's prebuilt binaries from here: 
> http://www.lfd.uci.edu/~gohlke/pythonlibs/

Christoph Gohlke's Shapely‑1.5.9‑cp27‑none‑win_amd64.whl includes a version of geos_c.dll that has the VC90 manifest embedded as resource 2, just like python27.dll. The DLL also exports a GEOSFree function, which is what shapely actually uses. That said, the geos.py module still defines a global free() using cdll.msvcrt.free. As far as I can see, it never actually calls it. Otherwise it would surely crash the process due to a heap mismatch.

Steve, since you haven't closed this issue, have you considered my suggestion to export _Py_ActivateActCtx and _Py_DeactivateActCtx for use by C extensions such as _ctypes.pyd? These functions are better than manually creating a context from the manifest that's embedded in python27.dll because they use the context that was active when python27.dll was initially loaded.
History
Date User Action Args
2015-06-18 18:29:18eryksunsetrecipients: + eryksun, paul.moore, tim.golden, zach.ware, steve.dower, carlkl, erik flister
2015-06-18 18:29:18eryksunsetmessageid: <1434652158.8.0.939038976161.issue24429@psf.upfronthosting.co.za>
2015-06-18 18:29:18eryksunlinkissue24429 messages
2015-06-18 18:29:18eryksuncreate