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From: Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject: Re: PYTHONPATH when calling from ipython
Date: Sat, 23 May 2015 10:12:30 +0100
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On 22/05/2015 06:20, Cecil Westerhof wrote:
> I am looking into using ipython instead of bash. But when I call a
> python program from ipython PYTHONPATH is not set. So pythonscripts
> that need a module through PYTHONPATH will not work.
>
> I could do something like:
>      !PYTHONPATH=~/Python/PythonLibrary python2 …
>
> But I find that a little bit cumbersome. Is there a better way to do
> it?
>

What makes you think this?  Have you tried:-

 >>> import os
 >>> os.environ['PYTHONPATH']
'C:\\Users\\Mark\\Documents\\Cash\\Python;C:\\Users\\Mark\\Documents\\MyPython'

That might be from the command line interpreter but it also works the 
same from iPython for me on Windows 8.1.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence