Take in 10 numbers, validate each input, append then in a list and then prints the sum of the list values

Question

I'm practicing loops in Python and started trying to have a better approach with user inputs, is there better ways of dealing with inputs when coding? And I tried using deques too, it worked very well, but don't know if I should or need to; are deques better in this case or should I keep using lists?

sum_numbers: list = list()

for question in range(1, 11):
    while True:
        try:
            print(f'{question}º number: ')
            asnwer = float(input('->  ').strip().replace(',', '.'))
        except ValueError:
            print('Invalid input! Try again...\n')
            continue
        else:
            sum_numbers.append(asnwer)
            break

print(
    '\nNumbers:\n'
    f'{sum_numbers}\n'.replace('[', '').replace(']', '') +
    f'\nSum: {sum(sum_numbers)}.'
)

Answer 1

performatic isn't a word, and in the software development industry this is more frequently written performant. Anyway, performance is not at all a concern in this program and you should be more concerned about correctness, maintainability and legibility.

If you're trying to accommodate commas as decimals, that's localisation (L10N). Python has support for localisation, and you should use it.

Consider rewriting your input loop as an iterator function.

asnwer is spelled answer.

Don't convert a list to a string and then .replace() on it - instead .join() the sequence with a separator of your choice.

You don't need a continue/else: you can break right out of the try.

Suggested

from locale import atof, format_string, setlocale, LC_ALL
from typing import Iterator


def get_numbers(n: int) -> Iterator[float]:
    for question in range(1, n + 1):
        while True:
            try:
                yield atof(input(f'{question}º número: '))
                break
            except ValueError:
                print('Entrada inválida! Tente novamente...')


def main() -> None:
    setlocale(LC_ALL, 'pt-PT')
    numbers = tuple(get_numbers(10))
    formatted_numbers = ", ".join(
        format_string('%.1f', x) for x in numbers
    )
    print(
        '\nNúmeros:'
        f'\n{formatted_numbers}'
        f'\nSoma: {format_string("%.1f", sum(numbers))}.'
    )


if __name__ == '__main__':
    main()

Output

1º número: 7.5
2º número: 3,50
3º número: 4,2
4º número: 5
5º número: 5
6º número: 5
7º número: 5
8º número: 5
9º número: 5
10º número: 5

Números:
7,5, 3,5, 4,2, 5,0, 5,0, 5,0, 5,0, 5,0, 5,0, 5,0
Soma: 50,2.