[osgeo4w-dev] Python in OSGeo4W

Matt Wilkie matt.wilkie at gov.yk.ca
Tue Dec 3 10:59:40 PST 2013

Hi Paolo,

Osgeo4w Python doesn't register itself with Windows. So it's likely that 
o4w python is there, just not visible. It should be located at 
C:\Osgeo4w\apps\python27. To test for it, open "Osgeo4W Shell" and run 
"python --version".

ArcGIS python and Osgeo4W python are not guaranteed to be so. The ArcGIS 
py lives at C:\Python27\ArcGIS10.x. Having both of them in PATH at once 
/will /lead to problems sooner or later, though depending on what 
modules are used it's possible to trundle along happily for quite awhile.

There's instructions for getting ArcGIS 9.x to use o4w python instead of 
it's own at 
which I used successfully for many years. I haven't tried that since we 
migrated to 10.x though and am maintaining 3 distinct pythons (Arc, o4w, 


matt wilkie
Geomatics Analyst
Information Management and Technology
Yukon Department of Environment
10 Burns Road * Whitehorse, Yukon * Y1A 4Y9
867-667-8133 Tel * 867-393-7003 Fax

On 03/12/2013 5:02 AM, Paolo Corti wrote:
> Hello list
> I am not a Windows user, but the few times I have been using OSGeo4W
> it was working like a charm, so the following problems sounds strange
> to me.
> A colleague of mine is trying to install it on his Windows 7 64 bit
> box, and for some reason the installer does not install Python and all
> the Python stuff at all (Python GDAL bindings and so on).
> Not sure if this could be related: on this system there is already
> another Python (2.7) that was installed together with the ArcPy ArcGIS
> Desktop library, but it is not set on PATH.
> Any hints of what it could be?
> thanks in advance
> p

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