fix_init_files.py

import os
import shutil
import sys

GOOD_CONTENT = ['# -*- coding: utf-8 -*-\n', 'from __future__ import unicode_literals\n']

def handle_file(path, path_to_good_file):
    data = open(path, 'r').readlines()
    if data == GOOD_CONTENT:
        return False
    if len(data) < 6:
        print(data)
        print (path, len(data))
        # this is a "stop" that lets the user to decide if the file should be overridden
        # you can change this part to your needs
        change = raw_input()
        if change == 'y':
            os.remove(path)
            shutil.copy(path_to_good_file, path)
            return True
    return False


def main(path_to_good_file):
    changed = []
    for root, dirs, files in os.walk(os.getcwd()):
        for filename in files:
            path = os.path.join(root, filename)
            if filename == "__init__.py":
                is_changed = handle_file(path, path_to_good_file)
                if is_changed:
                    changed.append(path)
    print(changed)

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print "Usage: {} <path_to_good_file>".format(sys.argv[0])
        sys.exit(1)
    main(sys.argv[1])