5 Common Mistakes in Python and How to Avoid Them

Some key things to look out for!

Kyle Pastor
5 min readFeb 8, 2023
Photo by Mona Jain on Unsplash

Python is a popular and versatile programming language, but even experienced developers can make mistakes. In this article, we’ll discuss five common mistakes that developers make when using Python and how to avoid them.

Misusing Indentation

Indentation is an essential part of Python’s syntax, and improper indentation can cause code to fail. When writing in Python, always make sure to use four spaces for each level of indentation, and be consistent with your indentation throughout the code.

Here’s an example of improper indentation causing code failure:

def greet(name):
print("Hello, " + name)
greet("John")

This code will raise an IndentationError, because the second line is not indented properly. The correct version of the code would be:

def greet(name):
print("Hello, " + name)
greet("John"

In this version, the print statement is indented by four spaces, which is the correct amount of indentation for a statement inside a function in Python.

Confusing the Order of Operations

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