What I do is test for TM_APP_PATH in os.environ: import os if __name__ == '__main__': if 'TM_APP_PATH' in os.environ: print 'Hello Textmate!' else: print 'Hello Terminal!' If you are working in a project, you could set your own environment variable for the project and test for it instead: import os import sys if __name__ == '__main__': if 'PY_ARGV' in os.environ: argv = os.environ.get('PY_ARGV').split() else: argv = sys.argv[1:] do_something_with(argv) On Mon, May 31, 2010 at 9:08 PM, Brian H <binarynomad(a)gmail.com> wrote: