Hows my code (its python prime number finder)

username = input("What do you want your username to be? ") def is_prime(number): if number < 2: return False if number % 2 == 0: return number == 2 divisor = 3 while divisor * divisor <= number: if number % divisor == 0: return False divisor += 2 return True def prime_finder(): try: number = int(input("Choose a number: ")) except ValueError: print("ERR: not a valid number") return if is_pri...