Untitled

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
import os
import subprocess

def do_sed(fullpath, old, new):
    sed_script = "s/%s/%s/g" % (old, new)
    command = ["sed", "-i", fullpath, "-e", sed_script]
    subprocess.call(command)

if __name__ == '__main__':
    argvs = sys.argv
    argc = len(argvs)

    if argc != 3:
        sys.exit(1)

    old = argvs[1]
    new = argvs[2]

    srcdir = "."
    for root,dir,files in os.walk(srcdir):
        for f in files:
            fullpath = os.path.join(root,f)
            do_sed(fullpath, old, new)