arithmetic challenge

from random import choice, randint
import operator as op

target = 10
success = 0

print('\n\nWelcome to a small arithmetic challenge')
print(f'\n You will be asked for the answer to {target} questions')
print('and after each answer you will be told if your are correct or')
print('not. At the end, you will be told how many correct answers')
print('you achieved.')
print('\nNote: For /, division, the floor (integer) answer is required')
print('(in face you should only provide whole number answers).\n')

# using a dictionary of operator symbols matched with their corresponding
# python functions to call to get answer for expression
ops = {'+': op.add, '-': op.sub, 'x': op.mul, '÷': op.floordiv}
op_symbols = list(ops.keys())  # list of op symbols to choose from randomly

challenges = []  # generate 10 simple random arithmetic challenges
for _ in range(target):  # need two random integers and random operator
    challenges.append((randint(1, 10), randint(1, 10), choice(op_symbols)))

for q_num, (op1, op2, action) in enumerate(challenges, start=1):  # loop through challenges
    try:  # in case user does not enter an integer, otherwise stops programme
        answer = int(input(f'\nQ{q_num}: {op1} {action} {op2} = '))  # show plain english question
    except ValueError:  # they didn't enter integer
        print('Sorry, require whole number answers (rounded down for division)')
    else:  # integer entered so can check answer
        correct = ops[action](op1, op2)  # call the correct function and pass numbers
        if answer == correct:
            print('Correct. Well done.')
            success += 1
        else:
            print('Sorry, that is wrong.')

print(f'\nYou achieved {success} correct answers for {target} questions\n')