python在指定目录下查找gif文件的方法

#!/usr/bin/python
# Use the standard find method to look for GIF files.
import sys, find
if len(sys.argv) > 1:
  dirs = sys.argv[1:]
else:
  dirs = [ '.' ]
# Go for it.
for dir in dirs:
  files = find.find('*.gif', dir)
  if files:
    print "For", dir + ':'
    for fn in files:
      print " ", fn
  else:
    print "For", dir + ': None'