Scientific Computing with Python Projects - Arithmetic Formatter

Python
1

I keep getting a traceback and cant figure what I am doing wrong.

 python3 main.py
Traceback (most recent call last):
File “/home/runner/boilerplate-arithmetic-formatter/main.py”, line 4, in
from arithmetic_arranger import arithmetic_arranger
File “/home/runner/boilerplate-arithmetic-formatter/arithmetic_arranger.py”, line 40
return(arranged_problems)
^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: ‘return’ outside function
exit status 1

Your code so far

def arithmetic_arranger(problems, display_answers=True):
if len(problems) > 5:
return(“Error: Too many problems.”)

first_line = “”
second_line = “”
dash_line = “”
answer_line = “”

for problem in problems:
parts = problem.split()
operand1, operator, operand2 = parts

if not (operand1.isdigit() and operand2.isdigit()):
  return("Error: Each operand must be a positive integer")

if operator not in "+-":
  return("Error: Operator must be '+' or '-'")

if len(operand1) > 4 or len(operand2) > 4:
  return("Error: Numbers cannot be more than four digits")

width = max(len(operand1), len(operand2)) + 2
first_line += operand1.rjust(width) + "    "
second_line += operator + operand2.rjust(width - 1) + "    "
dash_line += "-" * width + "    "

if display_answers:
  if operator == "+":
    answer = str(int(operand1) + int(operand2))
  else:
    answer = str(int(operand1) - int(operand2))
  answer_line += answer.rjust(width) + "    "

arranged_problems = first_line.rstrip() + “\n” + second_line.rstrip() + “\n” + dash_line.rstrip()

if display_answers:
arranged_problems += “\n” + answer_line.rstrip()

return(arranged_problems)

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Challenge: Scientific Computing with Python Projects - Arithmetic Formatter

Link to the challenge:

2

the error message is saying the return keyword in outside your function and I do not see any indentation in your code at all.In Python, Indentation is crucial to identify individual blocks of code. Here is an example of a function with identation

def function( a):
    a  += 1
    return a

identation is the whitespace before the return
check out this for more:
Indentation in Python with Examples (freecodecamp.org)

3

Pasting your code into the forum may have broken the formatting

Can you link to your replit please?

4

This is the issue I am having now:  python3 main.py
Traceback (most recent call last):
File “/home/runner/boilerplate-arithmetic-formatter-1/main.py”, line 4, in
from arithmetic_arranger import arithmetic_arranger
File “/home/runner/boilerplate-arithmetic-formatter-1/arithmetic_arranger.py”, line 31, in
first_line += operand1.rjust(width) + " "
AttributeError: ‘tuple’ object has no attribute ‘rjust’

My replit

5

you set your operand1, operator, operand2 to be tuples then you tried to use a string method on them trun them into strings if you want to use the rjust method on them

6

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