Scientific Computing with Python Projects - Arithmetic Formatter

Python
1

Tell us what’s happening:

Describe your issue in detail here.

Your code so far

def arithmetic_arranger(problems, show_answers=False):
    if len(problems) > 5:
        return "Error: Too many problems."
    
    arranged_problems = ""
    for problem in problems:
        operand1, operator, operand2 = problem.split()

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

        if not operand1.isdigit() or not operand2.isdigit():
            return "Error: Numbers must only contain digits."
        
        if len(operand1) > 4 or len(operand2) > 4:
            return "Error: Numbers cannot be more than four digits."
        
        max_width = max(len(operand1), len(operand2))
        line1 = operand1.rjust(max_width + 2)
        line2 = operator + ' ' + operand2.rjust(max_width)
        line3 = '-' * (max_width + 2)
        
        arranged_problems += line1 + '    '
        arranged_problems += line2 + '    '
        arranged_problems += '\n' + line3 + '    '

    if show_answers:
        arranged_problems += '\n'
        for problem in problems:
            operand1, operator, operand2 = problem.split()
            if operator == '+':
                result = str(int(operand1) + int(operand2))
            else:
                result = str(int(operand1) - int(operand2))
            max_width = max(len(operand1), len(operand2), len(result))
            line4 = result.rjust(max_width + 2)
            arranged_problems += line4 + '    '
    
    return arranged_problems.strip()

# Test the function
print(arithmetic_arranger(["3801 - 2", "123 + 49"]))
print(arithmetic_arranger(["1 + 2", "1 - 9380"]))
print(arithmetic_arranger(["3 + 855", "3801 - 2", "45 + 43", "123 + 49"]))
print(arithmetic_arranger(["11 + 4", "3801 - 2999", "1 + 2", "123 + 49", "1 - 9380"]))
print(arithmetic_arranger(["44 + 815", "909 - 2", "45 + 43", "123 + 49", "888 + 40", "653 + 87"]))
print(arithmetic_arranger(["3 / 855", "3801 - 2", "45 + 43", "123 + 49"]))
print(arithmetic_arranger(["24 + 85215", "3801 - 2", "45 + 43", "123 + 49"]))
print(arithmetic_arranger(["98 + 3g5", "3801 - 2", "45 + 43", "123 + 49"]))
print(arithmetic_arranger(["3 + 855", "988 + 40"], True))
print(arithmetic_arranger(["32 - 698", "1 - 3801", "45 + 43", "123 + 49", "988 + 40"], True))

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Challenge Information:

Scientific Computing with Python Projects - Arithmetic Formatter

2

You appear to have created this post without editing the template. Please edit your post to Tell us what’s happening in your own words.

3

there seems to be an issue with my code but I think everything is ok can some help please

4

Which tests are failing? What debugging have you tried so far?

5

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