I am trying to find a way to call python from my UWP app. So far I have a .exe file that I have compiled from python using pyinstaller (www.pyinstaller.org/). This basically allows me to package up my python script as a standalone binary (ie: you don't need python to run it). This all works well and I can call my wrapped up python .exe via cmd.exe no problem:
$ process.exe -p "path\to\file"
$ Processing file: "path\to\file"...
UWP apps are 'sandboxed'; i.e. they have many security restrictions placed upon them to isolate them from the rest of Windows (like not being able to read/write to the Registry and not being able to directly access random files from the file system).
So there is no way to run an
.exe (or any other executable) from your UWP app. If you have access to a
StorageFile (say music, video or any other file format) then you can launch the file in the default program associated with that file type.