#11. Write a Python program to get the file size of a plain file.
import os

print os.stat("C:\case_test.txt").st_size

print "=========="

def file_size(fname):
        import os
        statinfo = os.stat(fname)
        return statinfo.st_size

print("File size in bytes of a plain file: ",file_size("C:\case_test.txt"))