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Python Write Better Python Cleaner Code Operator Spacing

Rabih Atallah
Rabih Atallah
3,405 Points
Posted by Rabih Atallah
Rabih Atallah
3,405 Points

what does the error message mean?

It' a PEP 8 exercise. The error message is: trailing white space on line 15. Please can someone explain that to me?

starter.py 
numbers = [1, 2, 3, 4, 5]


def add(num1, num2):
    return num1 + num2


def subtract(num1, num2):
    return num1 - num2


def mathy(num1, num2):
    up = add(5 + 7, 7 + 9)
    down = subtract(6, 3)
    return add(up, down)

1 Answer

Chase Marchione
Chase Marchione
155,055 Points
Chase Marchione
Chase Marchione
155,055 Points

Hi there,

The convention is to add an empty line, without any whitespace, to the bottom of your py file. In this case, it'll be line 16.

Hope this helps!

Rabih Atallah
Rabih Atallah
3,405 Points
Rabih Atallah
Rabih Atallah
3,405 Points

Thank you CJ! It worked