eshel cows and bulls

import random


def cows_and_bulls():
    number = random.randint(1000, 9999)
    number_list = [int(x) for x in str(number)]
    try:
        while True:
            user_number = input('guess the number between 1000 - 9999: ')
            user_number_list = [int(x) for x in str(user_number)]
            cow_count = 0
            bull_count = 0
            if int(user_number) == number:
                print('you win!')
                break
            for i in range(4):
                if number_list[i] == user_number_list[i]:
                    cow_count += 1
                elif user_number_list[i] in number_list and not number_list[i] == user_number_list[i]:
                    bull_count += 1
            print('you have one cow' if cow_count == 1 else f'you have {cow_count} cows')
            print('you have one bull' if bull_count == 1 else f'you have {bull_count} bulls')
    except ValueError:
        print('wrong value')
    except IndexError:
        print('the number has to be between 1000 - 9999')


cows_and_bulls()