import os
import shutil
def copy_over(path, from_name, to_name):
for path, dirname, fnames in os.walk(path):
for fname in fnames:
if fname == from_name:
shutil.copy(os.path.join(path, from_name), os.path.join(path, to_name))
copy_over('.', 'index.tpl', 'index.html')