<source lang="bash">
source $HOME/.cshrc_epd
</source>
This can be become more easy, of you add an alias for activating python 'ap'.
<source lang="bash">
echo "alias ap 'source $HOME/.cshrc_epd'" >> $HOME/.cshrc
source $HOME/.cshrc
</source>
You can now at anytime just activate EPD python by doing
<source lang="bash">
ap
ipython
</source>