rename.py

import os, re, glob

#get file list
with open('order.txt') as file:
  titles = file.readlines()

#remove \n
for index, item in enumerate(titles, start=0):
  titles[index] = item.rstrip()

for num, title in enumerate(titles, start=1):
  glob_result = glob.glob("*{}*".format(title.rstrip()))
  if bool(glob_result) & bool(num > 20):
    matched_result = glob_result[0]
    if re.match(r'(^\d)', matched_result):
      continue
      print("{} begins with \d skipping".format(matched_result))
    new_filename = re.sub(r'(^)',"{} - ".format(num),matched_result)
    os.rename(matched_result, new_filename)
    print(new_filename)
  else:
    print(("{} - {} : glob failed, skipping").format(num, title))