import os
import time
import sys

def main():
    doubleTzset = (len(sys.argv) > 1)
    tstring = 'Fri Jul 25 13:26:29 EDT 2008'
    tformat = '%a %b %d %H:%M:%S %Z %Y'

    if doubleTzset:
        os.environ['TZ'] = 'Pacific/Fiji'
        time.tzset()

        time.strptime("25-06-2008", "%d-%m-%Y")

    os.environ['TZ'] = 'America/New_York'
    time.tzset()

    if 0:
        import _strptime
        try:
            _strptime._cache_lock.acquire()
            _strptime._TimeRE_cache.__init__(_strptime.LocaleTime())
        finally:
            _strptime._cache_lock.release()

    time.strptime(tstring, tformat)

if __name__ == '__main__':
    sys.exit(main())