def embed():
    import os
    import readline
    import rlcompleter
    import code
    import inspect
    import traceback

    history = os.path.join(os.path.expanduser('~'), '.python_history')
    if os.path.isfile(history):
        readline.read_history_file(history)

    frame = inspect.currentframe().f_back
    namespace = frame.f_locals.copy()
    namespace.update(frame.f_globals)

    readline.set_completer(rlcompleter.Completer(namespace).complete)
    readline.parse_and_bind("tab: complete")

    file = frame.f_code.co_filename
    line = frame.f_lineno
    function = frame.f_code.co_name

    stack = ''.join(traceback.format_stack()[:-1])
    print(stack)
    banner = f" [ {os.path.basename(file)}:{line} in {function}() ]"
    banner += "\n Entering interactive mode (Ctrl-D to exit) ..."
    try:
        code.interact(banner=banner, local=namespace)
    finally:
        readline.write_history_file(history)