import os
 
files = []
 
for file in os.listdir("."):
    if "P0k3M0N" in file:
        files.append(file)
 
with open('last.txt', 'r') as f:
    print("Last one: " + f.readline())
 
with open('last2.txt', 'r') as f:
    print("Last: " + f.readline())
 
episodes = []
 
for episode in range(len(files)):
    x = episode.find("x")
    episodes.append(episode[x - 1:x + 2])
 
index = episodes.find("2x01")
serie = {}

# -*- coding: Windows-1252 -*-
 
import os, re, sys
 
episodes = {}
 
for file in os.listdir('.\\'):
  match = re.match(r'(?P<filename>P0k3M0N\.(?P<season>(\d+))x(?P<chapter>\d+).+\.avi\.mp4)', file)
  if match:
    episodes.setdefault(match.group('season'), []).append(match.group('filename'))
 
for key, value in episodes.iteritems():
  print key, value
 
sys.exit(0)

1 ['P0k3M0N.1x01.Es.avi.mp4', 'P0k3M0N.1x02.Es.avi.mp4']
2 ['P0k3M0N.2x01.Es.avi.mp4', 'P0k3M0N.2x02.Es.avi.mp4', 'P0k3M0N.2x03.Es.avi.mp4']