def get_windows_tz(iana_tz):
timezone = IANA_TO_WIN.get(<EOL>iana_tz.zone if isinstance(iana_tz, tzinfo) else iana_tz)<EOL>if timezone is None:<EOL><INDENT>raise pytz.UnknownTimeZoneError(<EOL>"<STR_LIT>" + iana_tz.zone)<EOL><DEDENT>return timezone<EOL>
Returns a valid windows TimeZone from a given pytz TimeZone
    (Iana/Olson Timezones)
    Note: Windows Timezones are SHIT!... no ... really THEY ARE
    HOLY FUCKING SHIT!.