OK. If you read this you probably got the python tools developed at LMD (planetary science team).

[If someone gave you this README, and you don't have the actual codes on your computer, get it through SVN
svn co http://svn.lmd.jussieu.fr/Planeto/trunk/UTIL/PYTHON]

Each folder contains python modules and program you might want to access from anywhere
This is done through the PYTHONPATH environment variable
We also recommend to add PYTHONPATH to your PATH to use scripts anywhere

In a nutshell:
Assume you want to do that for two folders, say "planetoplot_v2" and "mcd"
Add to environment file (e.g. .bashrc) those lines

PYTHONPATH=$PYTHONPATH:you_got_to_adapt_this_to_your_own/PYTHON/planetoplot_v2
PYTHONPATH=$PYTHONPATH:you_got_to_adapt_this_to_your_own/PYTHON/mcd
export PYTHONPATH
PATH=$PYTHONPATH:$PATH
export PATH

Don't forget to source the environment file. Then enjoy!

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Note by A. Spiga. 27/04/2013