coder-here

import random 
comp_choise = ['rock' , 'papper' , 'scissor']
while True:
  user_input = input(f'choose one {comp_choise} ')
  if user_input in ['roc','ROCK','r']:
    user_input = 'rock'
  elif user_input in ['paper','p','pap']:
    user_input = 'papper'
  elif user_input in ['scisor', 's', 'scissors']:
    user_input = f'{comp_choise()}'