On Mon, Jul 26, 2010 at 4:36 PM, Peng Yu <pengyu...@gmail.com> wrote: > Hi, > > R_HOME is set in my shell (bash). But os.environ doesn't have it. I'm > not sure what it does when os module is imported. But it seems that > os.environ doesn't capture all the environment variable from the > shell. Could anybody let me know what is the correct way to inherent > all the environment variables form the shell? > > $ echo $R_HOME > /opt/R-2.11.1 > $ cat main.py > #!/usr/bin/env python > > import os > > print os.environ['R_HOME'] > $ ./main.py > Traceback (most recent call last): > File "./main.py", line 5, in <module> > print os.environ['R_HOME'] > File "/opt/Python-2.6.5/lib/python2.6/UserDict.py", line 22, in __getitem__ > raise KeyError(key) > KeyError: 'R_HOME'
You need to "export R_HOME" in bash (probably in your .bashrc or .bash_profile). See http://www.ibm.com/developerworks/library/l-bash.html#N10074 Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list