.pythonrc

try:
    import atexit
    import os
    import readline
    import rlcompleter
except ImportError as e:
    print("Module not available: " + str(e))
else:
    import readline

    # Add tab-completion
    if 'libedit' in readline.__doc__:
        # osx compatibility mode
        readline.parse_and_bind("bind ^I rl_complete")
    else:
        # everywhere else
        readline.parse_and_bind("tab: complete")

    # Save history for future python interpreter invocations
    historyPath = os.path.expanduser("~/.pyhistory")

    def save_history(historyPath=historyPath):
        readline.write_history_file(historyPath)

    # Read the history from disk
    if os.path.exists(historyPath):
        readline.read_history_file(historyPath)

    # Register that save_history is called when the python intepreter exits
    atexit.register(save_history)