try:
    get_ipython()
except:    
    try:
        # this add completion to python interpreter
        import readline
        import rlcompleter
        # see readline man page for this
        readline.parse_and_bind("set show-all-if-ambiguous on")
        readline.parse_and_bind("tab: complete")
    except:
        pass
# you can place a file .pythonrc.py in your home to overrides this one
# but then, this file will not be sourced