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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:
 def timestamp_with_timezone(dt=None):
 """ Return a timestamp with a timezone for the configured locale. If all else fails, consider localtime to be UTC. """

    dt = dt or datetime.now()
    if timezone is None:
        return dt.strftime('%Y-%m-%d %H:%M%z')
    if not dt.tzinfo:
        tz = timezone.get_current_timezone()
        if not tz:
            tz = timezone.utc
        dt = dt.replace(tzinfo=timezone.get_current_timezone())
    return dt.strftime("%Y-%m-%d %H:%M%z")