[Distutils] `develop' doesn't appends my package's directory to sys.path

[Gustavo Narea]

Hello, everyone.

I have an script which is supposed to run my test suite periodically, and the 
routine is basically this:
 1.- It checkouts my app's source from the repository, and stores it in a 
different directory on every checkout.
 2.- It runs setuptools build.
 3.- It runs setuptools develop.
 4.- It runs my test suite (via setuptools unittest).

But setuptools' develop doesn't append my project's path to sys.path; I don't 
know what is going on, but I'm absolutely sure about that. Here is part of 
the verbose output of the script (it's actually not an script per se; I'm 
using an Ant like app, part of the Bitten continuous integration system):

> [DEBUG   ] Executing <function exec_ at 0x83ccdf4> with arguments:
> {'executable': './setup.py', 'args': 'develop'}
> [DEBUG   ] Executing  ['./setup.py', 'develop']

And because my package is not accessible, its modules are not accessible 
either:
> ImportError: No module named build.lib.animador.config

Then, from the Python interpreter, I check sys.path and I find that my 
package's path is not included. But if I manually run `setup.py develop', and 
then open the Python interpreter again, the path is included.

Here's the output of my script http://paste.turbogears.org/paste/3255 and 
here's the full output of `setup.py develop' 
http://paste.turbogears.org/paste/3256

Also, here's my repository https://svn.gnulinuxmatters.org:81/animador/trunk/ 
and here you can browse the source code: 
https://tracker.gnulinuxmatters.org/browser/animador/trunk

I hope someone can help me out; I have spent days trying to fix this.

Thanks in advance.
-- 
Gustavo Narea.
General Secretary. GNU/Linux Matters.
http://www.gnulinuxmatters.org/
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