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How to add to the PYTHONPATH in Windows, so it finds my modules/packages? [duplicate]

I have a directory which hosts all of my Django apps (C:\My_Projects). I want to add this directory to my PYTHONPATH so I can call the apps directly.

I tried adding C:\My_Projects\; to my Windows Path variable from the Windows GUI (My Computer > Properties > Advanced System Settings > Environment Variables). But it still doesn't read the coltrane module and generates this error:

Error: No module named coltrane

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9

I prefer to use set path=%PATH%;%PYTHONPATH%;

Mr Wednesday
– Mr Wednesday

2013-02-23 01:43:14 +00:00
Commented Feb 23, 2013 at 1:43
11

Dos and editing autoexec.bat..! Have we suddenly slipped back into the 90s?

C Mars
– C Mars

2013-12-12 18:05:38 +00:00
Commented Dec 12, 2013 at 18:05
12

Before this, do echo %PYTHONPATH% if this gives you a path go on, otherwise, do e.g. set PYTHONPATH=.;C:\My_python_lib If you don't, windows will expand %PYTHONPATH% to empty string as expected, it will keep it as %PYTHONPATH% in the PYTHONPATH and everything will break! Sounds crazy but thats how win7 cmd works...

ntg
– ntg

2017-11-10 12:19:46 +00:00
Commented Nov 10, 2017 at 12:19
2

To make it permanent, use setx instead of set.

Amit Naidu
– Amit Naidu

2022-10-25 16:49:38 +00:00
Commented Oct 25, 2022 at 16:49
2

Note that the syntax differs if using setx, per @AmitNaidu's suggestion - I think it would be setx PYTHONPATH %PYTHONPATH%;C:\My_python_lib or set PYTHONPATH .;C:\My_python_lib. And note that your path can't contain spaces (see e.g. stackoverflow.com/a/69246810/4659442)

philipnye
– philipnye

2023-08-28 15:16:07 +00:00
Commented Aug 28, 2023 at 15:16

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How to add to the PYTHONPATH in Windows, so it finds my modules/packages? [duplicate]

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