Walk folder and search and replace in files #python

walk_search_replace.py

import os
startDirectory = "c:/temp/"
searchString = "maya2012"
replacement = """multiline
string"""

for dname, dirs, files in os.walk(startDirectory):
	for fname in files:
		if ".ma" in fname:
			fpath = os.path.join(dname, fname)
			print "Reading " + fpath
			with open(fpath) as f:
				s = f.read()
			s = s.replace(searchString, replacement)
			with open(fpath, "w") as f:
				f.write(s)
				print "Wrote " + fpath