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

Windows Client (10, 11, 12) Performance & Dépannage
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How to add to the PYTHONPATH in Windows, so it finds my modules/packages?

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You know what has worked for me really well on windows.

My Computer > Properties > Paramètres système avancés > Variables d'environnement >

Just add the path as C:\Python27 (or wherever you installed python)

OR

Then under variable systèmes I create a new Variable called PythonPath. In this variable I have C:\Python27\Lib;C:\Python27\DLLs;C:\Python27\Lib\lib-tk;C:\other-folders-on-the-path

This is the best way that has worked for me which I hadn’t found in any of the docs offered.

EDIT: For those who are not able to get it,
Please add

C:\Python27;

along with it. Else it will never work.