[Tutor] PYTHONPATH-corrected

[Steve Willoughby]

On Tue, Jun 30, 2009 at 02:33:27PM -0400, Bob Rea wrote:
> In working my way through the book on python, I am working 
> in directories for chapers. Now I am on modules, and some 
> are reused in later chapters. I have set up a directory for 
> the modules. How do I add it to my PYTHONPATH?
> I can use sys.path.append but that only lasts for the 
> session.

You set the variable in your system's environment, which is
platform-dependent.  For Linux, you'd typically put a line
in your ~/.profile or ~/.cshrc or ~/.login or ~/.bashrc or
whatever your shell uses per your account set up.  

So, for example, in a bash/sh shell, you'd say:

export PYTHONPATH="/path/to/my/modules"

or for csh:

setenv PYTHONPATH "/path/to/my/modules"

Then starting the next time you log in, that will be set
in your environment for you.

> This is on a suse linux 10 box
> 
> -- 
> Bob Rea
> mailto:petard at petard.us
> http://www.petard.us
> http://www.petard.us/blog
> http://www.petard.us/gallery
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Steve Willoughby    |  Using billion-dollar satellites
steve at alchemy.com   |  to hunt for Tupperware.