UTF-8 BOM adder

bom.py

import os

rootdir = 'EDIT_HERE'

for root, subdirs, files in os.walk(rootdir):
	for file in files:
		if file.endswith('.c') or file.endswith('.h'):
			f = open(root + '/' + file, 'rb')
			if f.read(3) != '\xEF\xBB\xBF':
				try:
					f.seek(0, 0)
					data = f.read()
					data.decode('cp949')
				except:
					f.close()
					f = open(root + '/' + file, 'wb')
					f.write('\xEF\xBB\xBF' + data)
					print root + '/' + file
			f.close()