Python fcntl Test

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#! /usr/bin/env python2.2
"""Test program for the fcntl C module.
   Roger E. Masse
import struct
import fcntl
import os, sys

import datetime

curr =

print curr


filename = sys.argv[1]

# Again, but pass the file rather than numeric descriptor:
f = open(filename, 'a+')

rv = fcntl.flock(f, fcntl.LOCK_EX)

import time

time.sleep (60)

rv = fcntl.flock(f, fcntl.LOCK_UN)