Arithmetic arranger help

[Calcio365]

Hey everyone. Can someone help me figure out why my arithmetic arranger is failing? I’ve tested it with multiple variations myself and it seems to work fine, but when I run it in main, it fails a bunch of tests. I’m primarily having a hard time decoding the error messages to know what to fix. Any help would be greatly appreciated.

Here is the code:

import re

def right_justified(numbers):
    '''Function that takes a string representation of a math problem and returns
    it as a string for long-form arithmetic.

    numbers: str
    return: tuple
    '''
    parts = numbers.split()
    length = ''
    for part in parts:
        if len(part) > len(length):
            length = part
    
    top = parts[0].rjust(len(length) + 2)
    bottom = parts[1] + ' ' + parts[2].rjust(len(length))
    dashes = '-' * (len(length) + 2)
    answer = str(int(parts[0]) + int(parts[2])).rjust(len(length) + 2)

    return (top, bottom, dashes, answer)

def checks(numbers):
    '''Checks if list of string represented math problems pass specified parameters

    numbers: list
    return: bool or str
    '''
    check_digits = []
    correct_format = []

    num_problems = len(numbers) <= 5
    if not num_problems:
        return 'Error: Too many problems.'

    for n in numbers:
        check_digits = n.split()
        correct_format.extend(re.findall(r'[\d]+ [+-] [\d]+', n))

        if not check_digits[0].isdigit() or not check_digits[-1].isdigit():
            return 'Error: Numbers must only contain digits'

        elif len(check_digits[0]) > 4 or len(check_digits[-1]) > 4:
            return 'Error: Numbers cannot be more than four digits.'

    if len(correct_format) < (len(numbers)):
        return 'Error: Operator must be "+" or "-".'

    return True

def arithmetic_arranger(numbers, show_answer=False):
    '''Take a list of string represented math problems and returns them for long-form math

    numbers: list
    show_answer: bool
    return: str
    '''
    tops = ''
    bottoms = ''
    dashes = ''
    answers = ''
    new_line = '\n'

    res_checks = checks(numbers)

    if res_checks != True:
        print(res_checks)
        return checks(numbers)

    else:
        for i in numbers:
            tops += right_justified(i)[0] + '    '
            bottoms += right_justified(i)[1] + '    '
            dashes += right_justified(i)[2] + '    '
            answers += right_justified(i)[3] + '    '

        tops = tops.rstrip()
        bottoms = bottoms.rstrip()
        dashes = dashes.rstrip()
        answers = answers.rstrip()

        show = (
                f'{tops}{new_line}{bottoms}{new_line}'
                f'{dashes}{new_line}{answers}'
            )

        hide = (
            f'{tops}{new_line}{bottoms}{new_line}'
            f'{dashes}{new_line}'
        )

        print(show)
        print(hide)

        if show_answer:
            return (
                f'{tops}{new_line}{bottoms}{new_line}'
                f'{dashes}{new_line}{answers}'
            )

        return (
            f'{tops}{new_line}{bottoms}{new_line}'
            f'{dashes}{new_line}'
        )

[Calcio365]

Sorry, I should specify: I’m having a hard time decoding the error messages from the test_module in Replit; I do not have any error codes when I run it locally.

And here is the Replit link: boilerplate-arithmetic-formatter-1 - Replit

[Calcio365]

I finally figured it out. The test_module is very particular. I had double quotes around + and - in one of the Error messages and it wanted single quotes. I also forgot a period in one of my Error messages. Lastly, my code did not account for arithmetic problems where the answer would turn out negative. Once I fixed these problems, I passed all of the test.