[Tutor] how to permanently add a module path

[Christopher Arndt]

shawn bright schrieb:
> ok,
> i am on ubuntu and there is no /etc/profile.d directory
> i put this in the /etc/environment file
> 
> PYTHONPATH=/usr/lib/python2.4/site-packages/pivotrac
> export PYTHONPATH
> 
> but it doesn't seem to be working.
> There is no master python config file somewhere where all these are listed ?
> i wonder becuase i add modules via apt, and they are put where they need
> to be.

Ok, I see, you're trying to add you module in the standard site modules path
(/usr/lib/pythonX.Y/site-packages on Unices). This is an entirely different matter.

You have two possibilities:

1) Turn your module directory into a paackage by adding a '__init__.py' file to
it. This file may be empty. You can then iumport from your module like this:

from pivotrac import mymodule


For more information on Python module packages, see here:

http://www.python.org/doc/current/tut/node8.html#SECTION008400000000000000000

2) You can add a .pth file to the site-packages directory that points to your
module directory. E.g. ass a file pivotrac.pth to
/usr/lib/python2.4/site-packages/ that just contains one line:

pivotrac

For more information about .pth files, see here:

http://www.python.org/doc/current/lib/module-site.html


With both methods you don't need to change PYTHONPATH at all.


Chris

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