text: #!/usr/bin/env python3
  
  import argparse
  from xor_tools import plaintext_bytes
  from xor_tools.rolling_key import RollingKey
  
  
  def main():
      parser = argparse.ArgumentParser(description='Encrypts a file using a defined XOR key')
      parser.add_argument("-f", "--file", help="Input file", type=argparse.FileType('rb'), required=True)
      parser.add_argument("-o", "--output", help="Output file", type=argparse.FileType('wb'), required=True)
      parser.add_argument("-k", "--key", help="XOR key", type=plaintext_bytes, required=True)
  
      args = parser.parse_args()
  
      rk = RollingKey(args.key)
      for c, k in zip(args.file.read(), rk):
          args.output.write(bytes([c ^ k]))
      args.output.close()
  