Rock-Paper-Scissors

#Rock paper scissors game!

#ask for player names.

while True:
  p1Name = input("What is Player One's name?\n")
  p2Name = input("What is Player Two's name?\n")

#Get player answers, and make answers case sensitive.

  p1 = (input((p1Name + ': Rock, Paper, or Scissors?\n')))
  p2 = (input((p2Name + ': Rock, Paper, or Scissors?\n')))

  p1 = p1.lower()
  p2 = p2.lower()

#Invalid inputs

  if p1 != 'rock' and p1 != 'paper' and p1 != 'scissors':
    print('Invalid input.')
  elif p2 != 'rock' and p2 != 'paper' and p2 != 'scissors':
    print('Invalid input.')

#Valid inputs

  elif p1 == 'rock' and p2 == 'scissors':
    print(p1Name + ' has won!')
  elif p1 == 'rock' and p2 == 'paper':
    print(p2Name + ' has won!')
  elif p1 == 'paper' and p2 == 'scissors':
    print(p2Name + ' has won!')
  elif p1 == 'paper' and p2 == 'rock':
    print(p1Name + ' has won!')
  elif p1 == 'scissors' and p2 == 'rock':
    print(p2Name + ' has won!')
  elif p1 == 'scissors' and p2 == 'paper':
    print(p1Name + ' has won!')
  elif p1 == p2:
    print('It is a tie!')

#Play again?

  repeat = input('Do you want to play again?\n')
  repeat = repeat.lower()
  if repeat == 'yes' or 'y':
    continue
  else:
    break