import os
import time
print("file last modified: %s" % time.ctime(os.path.getmtime("d:\data.txt")))
print("file created: %s" % time.ctime(os.path.getctime("d:\data.txt")))
'''
run:
file last modified: Tue Jun 23 19:42:35 2015
file created: Tue Mar 17 07:47:39 2015
'''