debian@debian:~$ echo $PYTHONPATH /home/qiime/lib/: debian@debian:~$ python Python 2.7.3 (default, Jan 2 2013, 16:53:07) [GCC 4.7.2] on linux2 Type \"help\",
Those of us using Python 3.x should do this:
python -c "import sys; print(sys.path)"