Build an Arithmetic Formatter Project - Build an Arithmetic Formatter Project

Python
1

Tell us what’s happening:

I get this error and I don’t understand what’s wrong:
6. arithmetic_arranger([“3 / 855”, “3801 - 2”, “45 + 43”, “123 + 49”]) should return “Error: Operator must be ‘+’ or ‘-’.”.

Your code so far

def arithmetic_arranger(problems, show_answers=False):
    if len(problems) > 5:
        return 'Error: Too many problems.'

    # Listas para cada línea del resultado
    line1 = []
    line2 = []
    line3 = []
    line4 = []

    for problem in problems:
        num1, operator, num2 = problem.split()

        if operator not in ['+', '-']:
            return 'Error: Operator must be "+" or "-".'

        if not num1.isdigit() or not num2.isdigit():
            return 'Error: Numbers must only contain digits.'

        if len(num1) > 4 or len(num2) > 4:
            return 'Error: Numbers cannot be more than four digits.'

        # Calcular el ancho necesario para la operación
        width = max(len(num1), len(num2)) + 2  # +2 para el operador y espacio
        
        # Formatear cada línea
        line1.append(f'{num1:>{width}}')
        line2.append(f'{operator} {num2:>{width-2}}')
        line3.append('-' * width)

        if show_answers:
            if operator == '+':
                result = str(int(num1) + int(num2))
            else:
                result = str(int(num1) - int(num2))
            line4.append(f'{result:>{width}}')

    # Juntar los resultados con 4 espacios entre cada problema
    arranged_problems = '    '.join(line1) + '\n' + '    '.join(line2) + '\n' + '    '.join(line3)

    if show_answers:
        arranged_problems += '\n' + '    '.join(line4)

    return arranged_problems

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Challenge Information:

Build an Arithmetic Formatter Project - Build an Arithmetic Formatter Project

2

did you try testing your code with the given values?
Your code should return the Error message

3

When you talk to me about given values, are they the ones that appear in the error?

4

yes, the values shown in the error message are part of a test that is failing. So one thing to do is to simply test your code with the exact values.

5

[quote=“hbar1st, post:4, topic:711046, full:true”]
yes, the values shown in the error message are part of a test that is failing. So one thing to do is to simply test your code with the exact values.
[/quote]Yes, thanks, I just realized that the test was not passing because the error message was with double quotes ', and I was passing it with single quotes '.
Thanks for the time.

1 Like