python获得文件创建时间和修改时间的方法

import os.path, time
import exceptions
class TypeError (Exception):
  pass
if __name__ == '__main__':
 if (len(os.sys.argv) < 1):
   raise TypeError()
 else:
   print "os.sys.argv[0]: %s" % os.sys.argv[0]
   # os.sys.argv[0] is the current file, in this case, file_ctime.py
 f = os.sys.argv[0]
 mtime = time.ctime(os.path.getmtime(f))
 ctime = time.ctime(os.path.getctime(f))
 print "Last modified : %s, last created time: %s" % (mtime, ctime)