import os file_list=[] def gci(filepath): files = os.listdir(filepath) for fi in files: fi_d = os.path.join(filepath,fi) if os.path.isdir(fi_d): gci(fi_d) else: if fi_d.endswith(('.java')): readfile(os.path.join(filepath, fi_d)) lister = ['Licensed to the Apache Software Foundation (ASF) under one'] def readfile(filename): try: fopen = open(filename,'r') fileread=fopen.read() fopen.close() for lis in lister: if lis not in fileread: file_list.append(filename) writefile(filename) except Exception as e: print e license ='''/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ ''' def writefile(filename): try: with open(filename, "r+") as f: old = f.read() f.seek(0) f.write(license) f.write(old) except Exception as e: print e gci(os.getcwd()) print "file_list ",file_list