Enable tab completion for interactive Python (PYTHONSTARTUP script)

.pythonrc

# PYTHONSTARTUP=~/.pythonrc
#

# Enable tab completion for interactive python
try:
    import readline
    import rlcompleter
except ImportError:
    pass
else:
    if 'libedit' in getattr(readline, '__doc__', ''):
        readline.parse_and_bind('bind ^I rl_complete')
    else:
        readline.parse_and_bind('tab: complete')
    del readline, rlcompleter

# vim: expandtab