Scientific Computing with Python Projects - Arithmetic Formatter

[thomasnairon]

Tell us what’s happening:
Describe your issue in detail here.
The problem i’m having is in the last test template, more specifically, [test_five_problems_with_solutions]. The problem is that is not displaying correctly in the output, i don’t know what to do right now. If any of you could help me, i’d be thankful.

Your code so far

def arithmetic_arranger(problems, solve = False):
  first = ""
  second = ""
  third = ""
  fourth = ""
  arranged_problems = ""

  for item in problems:

    #first error
    if len(problems) > 5:
        return "Error: Too many problems."
        break
  
    #Slitting using split function
    itemh = item.split() 

    # x = [a + b] ---> ['a', '+', 'b']

    #Second error
    if itemh[1] == "+":
      op = itemh[1]
      
    elif itemh[1] == "-":
      op = itemh[1]

    else:
      return "Error: Operator must be '+' or '-'."
      break
      
    #Third error   
    try:
      n1 = int(itemh[0])
      n2 = int(itemh[2])
    except:
      return "Error: Numbers must only contain digits."
      break
      
    #Fourth error
    if len(itemh[0]) > 4 or len(itemh[2]) > 4:
      return "Error: Numbers cannot be more than four digits."
      break

    #bar identation
    if len(itemh[0]) + 2 > len(itemh[2]) + 2:
      bi = len(itemh[0]) + 2
    else:
      bi = len(itemh[2]) + 2

    #top, mid, bottom (numeros em cima, meio e embaixo)
    top = str(n1).rjust(bi)    #alinha um valor a direita
    mid = str(n2).rjust(bi-1)
    strip = '-' * bi

    #bot (resultado)
    if op == "+":
      result = n1+n2
    else:
      result = n1-n1
    bot = str(result).rjust(bi)
    
    #first, mid, bot
    if item!=problems[-1]:
      first += top + "    "
      second += op + mid + "    "
      third += strip + "    "
      fourth += bot + "    "
    else:
      first += top
      second += op + mid
      third += strip
      fourth += bot

  #final (juntando tudo)
  if solve:
    arranged_problems = first + '\n' + second + '\n' + third + '\n' + fourth
  else:
    arranged_problems = first + '\n' + second + '\n' + third
  
  return arranged_problems

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Challenge: Scientific Computing with Python Projects - Arithmetic Formatter

Link to the challenge:

freeCodeCamp.org

[JeremyLT]

I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').

[JeremyLT]

@thomasnairon

    #bar identation
    if len(itemh[0]) + 2 > len(itemh[2]) + 2:
      bi = len(itemh[0]) + 2

I would use full words as variable names to make this more readable. It is actually detrimental to use short, cryptic variable names.

@thomasnairon

result = n1-n1

oops

[thomasnairon]

This is my first time publishing a question, i did not know abou this. I’ll improve next time, thanks JeremyLT