Python Pep Standards Tutorial – Complete Guide

Welcome, fellow learners, on another enlightening journey about a crucial aspect of the Python programming language: PEP standards. This tutorial promises an engaging deep dive into Python’s PEP standards, spiced up with simple and captivating game-like examples. Why is it important? Well, these standards are your golden ticket to writing Python code that’s not only effective but also respected by the community. Ready to unravel this treasure of knowledge? Let’s jump right in.

What are Python PEP Standards?

Python PEP standards, or Python Enhancement Proposals, are essentially guidelines that govern the writing of Python code. They form an integral part of Python’s identity, setting it apart with its readability and neat structure.

Learning and adhering to Python PEP standards is invaluable for two main reasons:

  • Readability: PEP standards enrich Python’s code with high readability, making it seamless for anyone to read, understand and use your code.
  • Community Respect: Following PEP standards demonstrates your mastery of Python, earning you respect and acceptance in the Python community.

In the upcoming portion of this tutorial, we are going to use Python’s PEP standards to draw parallels with game mechanics. We aim to bolster your learning experience by making these examples self-contained and beginner-friendly, while also engaging, interactive, and informative for those with prior coding experiences. In essence, this tutorial, though appears game-like, silently empowers you with internationally recognized Python coding practices.

Let the coding begin!

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Python PEP 8: Code Layout

We’re kicking things off with PEP 8, which deals with the layout of your Python Code. Think of it as setting the boundaries and rules in a game. The characters can’t go beyond the boundaries, and neither can your code.

# Example of wrong indents
def function(arg_one, arg_two,
arg_three, arg_four):
    return arg_one
# Example of correct indents according to PEP 8
def function(
        arg_one, arg_two,
        arg_three, arg_four):
    return arg_one

In the examples above, notice how the second function has all arguments starting from a new line. This is standard practice from PEP 8 rules, enhancing readability.

Python PEP 8: Variable Naming Conventions

Just like in-game characters need appropriate names for quick identification, Python variables too need clear names.

# Unclear variable naming
p = 'Hello, Zenva!'
# Clear variable naming
greeting = 'Hello, Zenva!'

The above examples explain the concept wonderfully. In the first instance, the variable name ‘p’ gives no indication about the nature of the string stored, while ‘greeting’ is self-explanatory, demonstrating the power of clear variable names.

Python PEP 257: Docstrings

Moving onto PEP 257, which covers Docstrings. They are the equivalent of game tutorials, explaining what the particular code does.

def hello_world():
    """This function prints Hello, World!"""
    print('Hello, World!')

The function above has a proper docstring which clearly signifies its function. Remember, a well-documented code is always appreciated.

Python PEP 20: The Zen of Python

Let’s finish off with stylized and philosophical rules of PEP 20. They are akin to morale in games: not explicitly stated, but always felt.

import this

Executing the above command in Python presents “The Zen of Python”, a collection of 19 aphorisms that serve as guiding principles for writing great Python code. Aim to follow this as closely as possible to become a seasoned Python developer.

Python PEP 8: Function and Variable Names

When it comes to naming functions and variables, PEP 8 insists on using descriptive names in lowercase letters separated by underscores. This is like naming your game characters in a way that resonates with their personalities.

# incorrect
def DoSomething():
# correct
def do_something():

Above shows the contrast between the incorrect and correct ways of defining function names based on PEP 8.

Python PEP 8: Import Statements

Much like arranging your team of game characters at the beginning of each chapter, import statements should always be at the top of Python files. Moreover, they should be separated according to the modules being imported.

# incorrect
import sys, os
# correct
import os
import sys

As seen above, the correct PEP 8 way is to import each module separately.

Python PEP 8: Maximum Line Length and Line Breaking

PEP 8 advises to limit all lines to a maximum of 79 characters. This is similar to following the game’s storyline without diversion. It maintains readability and structure.

# incorrect
def function(arg_one, arg_two, arg_three, arg_four, arg_five, arg_six):
# correct
def function(arg_one, arg_two, arg_three, 
             arg_four, arg_five, arg_six):

Above, we’ve broken the arguments into two lines to ensure no line exceeds 79 characters.

Python PEP 8: Using White Spaces

PEP 8 also dictates how to ideally use white spaces in expressions and statements, akin to maintaining gaps between different elements of a gaming console.

# incorrect
# correct
list = [1, 2, 3, 4, 5]

In the example above, spaces around the assignment operator “=” and after the commas make the line of code much easier to read.

These are some of the most followed Python PEP standards that help in task efficiency and community acceptance. They are your key to start writing high-quality Python code.

Where to Go Next

You’ve come a long way in understanding Python PEP standards, and we applaud your diligence! But this is only the beginning. The fascinating world of Python is filled with potential for exploration and learning. This journey doesn’t end here.

To assist you on your ongoing voyage, we enthusiastically recommend our Python Mini-Degree. This comprehensive collection of Python courses offers a captivating learning experience, covering a wide range of intriguing topics like coding basics, algorithms, object-oriented programming, and app development. Along the journey, you’ll breathe life into exciting projects like games, medical diagnosis bots, and real-world apps. Each course is designed to be accessible and engaging for beginners, yet rich and challenging enough to intrigue more experienced programmers.

Looking for a broader horizon in Python? We’ve got you covered too. Check out our extensive collection of Python courses to quench your thirst for knowledge and augment your Python prowess. Remember, with Zenva, you’re always learning. So, keep exploring, keep coding, and keep growing. Your Python journey has only just begun.


In this engaging tutorial, you’ve learned all about Python PEP standards, their significance, and how to incorporate them into your code. As you continue to navigate the world of Python, these standards will become your guiding beacon, illuminating your path to writing efficient and readable code.

Whether you’re an expert seeking to enrich your knowledge or a beginner eager to deep-dive into Python, our Python Mini-Degree can fast track your learning progress. With Zenva, you’ll be turning your ideas into reality using Python, and you’ll be doing so in style, adhering to the best practices outlined in this guide. Now, there’s a Python game worth playing! Coding adventures have never been more exciting.

Did you come across any errors in this tutorial? Please let us know by completing this form and we’ll look into it!

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