new_contents: import os
  import sys
  
  USAGE = "Usage: " + sys.argv[0] +\
          " directory \"Name of Series\" season [start] [extentison]\n"\
          "Rename video files within specified directory"
  
  episodenames = {}
  
  
  def main():
      if len(sys.argv) < 3:
          print(USAGE)
      else:
          directory = sys.argv[1]
          title = sys.argv[2]
          season = int(sys.argv[3])
  
          try:
              increment = int(sys.argv[4])
          except IndexError:
              increment = 1
  
          try:
              extension = sys.argv[5]
              if extension[0] != ".":
                  extension = "." + extension
          except IndexError:
              print("No file extension provided, assuming .mkv")
              extension = ".mkv"
  
          collectfilenames(directory, title, season, increment, extension)
  
          usrinput = input("Rename files? (y/n) ").lower()
  
          if usrinput == "y":
              for key, val in episodenames.items():
                  os.rename(key, val)
          else:
              print("Exiting...")
              sys.exit()
  
  
  def collectfilenames(directory, title, season, inc, ext):
      for filename in [x for x in os.listdir(directory) if ext in x[-5:]]:
              newname = (title + " - S{:02d}".format(season) +
                         "E{:02d}".format(inc) + ext)
              print(filename + " --> " + newname)
              episodenames[directory + '/' + filename] = (directory + '/' +
                                                          newname)
              inc += 1
  
  if __name__ == '__main__':
      main()
  
subject: add script