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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 """This command stops execution and waits for the user to press any key to continue. This is similar to the Windows batch "pause" command. If the program is not run through a terminal, this command will instead do nothing. .. versionadded:: 2.0 .. versionadded:: 4.0 Added the `err` parameter. :param info: the info string to print before pausing. :param err: if set to message goes to ``stderr`` instead of ``stdout``, the same as with echo. """

    if not isatty(sys.stdin) or not isatty(sys.stdout):
        return
    try:
        if info:
            echo(info, nl=False, err=err)
        try:
            getchar()
        except (KeyboardInterrupt, EOFError):
            pass
    finally:
        if info:
            echo(err=err)