QC input value against dictionary in while loop

[dadgums]

Hi, all. I'm super new to python and to OOP and was hoping for some help. I built a simple RPS game and wanted to include a check for user entry against a dictionary. If entry is invalid a simple print command asking for another entry and if the entry was valid, break and move onto the next line. The problem is when I tried within an existing loop, the break would skip additional steps. I couldn't figure it out so was hoping a kind stranger could help out this poor lost soul o_0.

My original code (without the horrible attempt at QC) is below. Could someone give me a hand as to how to have the choice input on line 51 QC'd against the user_legend dictionary on line 57? Thanks in advance!

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#Version one with no QC check for rock, paper, scissor user entry import sys import random import time import math #Ask for user name and greet user user = input('Hi, what\'s your name? ')   #Intro yourself print() print('Hello,',user+'. I am RPS-Bot, and I am here to KILL you.') time.sleep(1) print()   print('Nah, I\'m just messin...') time.sleep(1.5) print('Seriously though, if you want to ',end="") print ('live then play Rock, Paper, Scissors')   time.sleep(1.5) print() #print("Do you want to play until you're bored of a 'best of' match?") #choice = input("Type 'U' for unlimited and 'B' for best of") while 1==1:     best = input('How many "best of games" do you want to play? ')     try:         int(best)         break     except ValueError:         print(best,"??? I need a number. Humans, amirite?")         print()         continue win_number = math.ceil(int(best)/2) #Ask for user input for rock paper scissor. Can accept single letter or uppercase and lowercase full spelling   print() print("Ok, best of",best+". First one to",str(win_number)+" wins!") time.sleep(1) print() print("Pick Rock, Paper or Scissors \n"                "(R, P, S if you're lazy.)") time.sleep(0.5) #Set Scores to Zero rps_score = 0 user_score = 0     #start RPS loop while (user_score < win_number and rps_score < win_number):     print()     choice = input("Whats your throw? ")   #generate RPS-bot throw     rps = random.randint(1,3)     rpslegend = {1:"Rock", 2:"Paper", 3:"Scissors"} # create RPS legend     userlegend = {'rock': 'Rock', 'r': 'Rock', 'paper': 'Paper', 'p': 'Paper', 's': 'Scissors', 'scissors': 'Scissors'}   # generate game possibilities     possible_outcomes = {"Rock : Rock": "Tie, shoot again!", 'Rock : Scissors': "You win!",                          'Rock : Paper': "You lose, sucka!",                          "Paper : Paper": "Tie, shoot again!", 'Paper : Scissors': "You lose, sucka!",                          'Paper : Rock': "You win!",                          'Scissors : Scissors': "Tie, shoot again!", "Scissors : Rock": "You lose, sucka!",                          "Scissors : Paper": "You win!"                          }       game = userlegend[choice]+' : '+rpslegend[rps]   #indicate winner     print(game)     time.sleep(0.25)     print(possible_outcomes[game])    #tally score     if (possible_outcomes[game]) == "You win!":         user_score += 1       if (possible_outcomes[game]) == "You lose, sucka!":         rps_score  += 1   #print score     time.sleep(0.5)     print(user+':',str(user_score)+'. RPS-Bot: ',str(rps_score))   #if tie, start loop over     if (possible_outcomes[game])=='Tie, shoot again!':         time.sleep(.5)         continue   time.sleep(.75) print() if user_score == win_number:     print('I lost??! NOW YOU MUST DIEEE!') else:     print('I won, RPS-Bot is the GREATEST OF ALL TIIIIIIIME!')

[woooee]

Something like this simplified example

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def get_input():     user_input=""     while user_input.lower() not in ["rock", "paper", "scissors", "r", "p", "s"]:            print()         print("Pick Rock, Paper or Scissors \n"                "(R, P, S if you're lazy.)")         user_input=input()     return user_input

[dadgums]

Thanks for the reply -Sorry if I'm dense, where would I insert this? I tried in a few different cases and it wasn't working. Do I need to re-write the code with only one while loop using this defined function as the start of the loop or would I nest loops?