change windows system path from cygwin python?

Jeff Lindholm jeff_news at
Wed Dec 15 19:43:35 CET 2004

> I want to write some kind of install script for my python app that
> will add c:\cygwin\usr\bin to the system path.  I don't want
> to walk around to 50 PC's and twiddle through the GUI to:
> My Computer --> Control Panel --> System --> Advanced --> Environment
> How can a python, or even a .bat script modify the system PATH?
> It doesn't appear to be in the registry.
It is in the registry
All users = local machine - "System\CurrentControlSet\Control\Session 
Current User = Current User - Environment

The only issue with this is you will have to reboot for it take effect.

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