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What we have typically done at my organization, is on a shared location that is accessible by all of our servers is set up a folder with third party python modules and temporarily append that path to the PYTHONPATH like so in the GP Script: sys.path.append(r'//server/path_to/third_party/modules') The other option is as you mentioned would be to install the ...


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You can do this through the Vector -> Distance Matrix tool in QGIS. One of Ujaval Ghandi's excellent QGIS tutorials explains exactly how to do so here: http://www.qgistutorials.com/en/docs/nearest_neighbor_analysis.html


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Using OSGeo4W64 setup might be the best solution for you. You have to select QGIS and GRASS (which is GRASS7). Make sure you delete C:\users\<username>\.qgis2\python\plugins\processing if you still have that.


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I think the key concern, as raised by most people here, is whether or not your 3rd party libraries are x64-compatible. (Some libraries are simply pure python code that is architecture independent while some are not.) Since you just stated that you are using a pure x86 python environment, I would suggest you to verify the 3rd party libraries can run in x64 ...


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You can do this geoprocessing in QGIS by first making the image bounday of all DTED. This will convert all DTED to polygon shapefiles. Then run the spatial query for touches/intersects between your AOI and DTED polygon. You need to download the Image boundary plugin for this.



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