Tutorials about evergreen topics that don’t rely on libraries or particular versions of Python. It’s reasonable to expect the content to stay correct for a long time.

Using the "not" Boolean Operator in Python

Using the "not" Boolean Operator in Python

basics python

Using the len() Function in Python

Using the len() Function in Python

basics python

Representing Rational Numbers With Python Fractions

Representing Rational Numbers With Python Fractions

basics python

Python's sum(): The Pythonic Way to Sum Values

Python's sum(): The Pythonic Way to Sum Values

basics python

Reverse Strings in Python: reversed(), Slicing, and More

Reverse Strings in Python: reversed(), Slicing, and More

basics best-practices python

Using the "and" Boolean Operator in Python

Using the "and" Boolean Operator in Python

basics best-practices python

A Python Guide to the Fibonacci Sequence

A Python Guide to the Fibonacci Sequence

intermediate

How Long Does It Take to Learn Python

How Long Does It Take to Learn Python?

basics career community

Using Python Optional Arguments When Defining Functions

Using Python Optional Arguments When Defining Functions

basics python

Python's deque: Implement Efficient Queues and Stacks

Python's deque: Implement Efficient Queues and Stacks

intermediate data-structures python

Python's ChainMap: Manage Multiple Contexts Effectively

Python's ChainMap: Manage Multiple Contexts Effectively

intermediate python

Python's collections: A Buffet of Specialized Data Types

Python's collections: A Buffet of Specialized Data Types

intermediate data-structures python

What Can I Build With Python?

What Can I Do With Python?

basics career

Python's Counter: The Pythonic Way to Count Objects

Python's Counter: The Pythonic Way to Count Objects

basics python

Reverse Python Lists: Beyond .reverse() and reversed()

Reverse Python Lists: Beyond .reverse() and reversed()

basics python

Simplify Complex Numbers With Python

Simplify Complex Numbers With Python

intermediate python

Python Practice Problems: Parsing CSV Files

Python Practice Problems: Parsing CSV Files

intermediate best-practices career

Python's filter(): Extract Values From Iterables

Python's filter(): Extract Values From Iterables

intermediate best-practices python

Context Managers and Python's with Statement

Context Managers and Python's with Statement

intermediate python

Write Pythonic and Clean Code With namedtuple

Write Pythonic and Clean Code With namedtuple

intermediate data-structures python

Recursion in Python: An Introduction

Recursion in Python: An Introduction

intermediate python

Build a Python Directory Tree Generator for the Command Line

Build a Python Directory Tree Generator for the Command Line

intermediate projects

OrderedDict vs dict in Python: The Right Tool for the Job

OrderedDict vs dict in Python: The Right Tool for the Job

intermediate data-structures python

Python Inner Functions

Python Inner Functions: What Are They Good For?

intermediate python

How to Use Python: Your First Steps

How to Use Python: Your First Steps

basics python

Make Your First Python Game: Rock, Paper, Scissors!

Make Your First Python Game: Rock, Paper, Scissors!

basics gamedev projects

Python's .append(): Add Items to Your Lists in Place

Python's .append(): Add Items to Your Lists in Place

basics python

The pass Statement: How to Do Nothing in Python

The pass Statement: How to Do Nothing in Python

basics python

Bitwise Operators in Python

Bitwise Operators in Python

intermediate python

Caching in Python Using the LRU Cache Strategy

Caching in Python Using the LRU Cache Strategy

intermediate python

Python Booleans: Optimize Your Code With Truth Values

Python Booleans: Use Truth Values in Your Code

intermediate python

Python's map(): Processing Iterables Without a Loop

Python's map(): Processing Iterables Without a Loop

basics best-practices python

The Python return Statement: Usage and Best Practices

The Python return Statement: Usage and Best Practices

basics best-practices python

Python Practice Problems: Prepare for Your Next Interview

Python Practice Problems: Get Ready for Your Next Interview

intermediate best-practices career

Numbers in Python

Numbers in Python

basics python

Find & Fix Code Bugs in Python: Debug With IDLE

Find & Fix Code Bugs in Python: Debug With IDLE

basics tools

Common Python Data Structures (Guide)

Common Python Data Structures (Guide)

basics data-structures python

Pass by Reference in Python: Background and Best Practices

Pass by Reference in Python: Background and Best Practices

intermediate best-practices python

Namespaces and Scope in Python

Namespaces and Scope in Python

basics python

Learn IP Address Concepts With Python's ipaddress Module

Learn IP Address Concepts With Python's ipaddress Module

intermediate

Python import: Advanced Techniques and Tips

Python import: Advanced Techniques and Tips

intermediate python

Python's reduce(): From Functional to Pythonic Style

Python's reduce(): From Functional to Pythonic Style

intermediate best-practices python

The Python heapq Module: Using Heaps and Priority Queues

The Python heapq Module: Using Heaps and Priority Queues

intermediate data-structures python

Python Keywords: An Introduction

Python Keywords: An Introduction

basics python

Regular Expressions: Regexes in Python (Part 2)

Regular Expressions: Regexes in Python (Part 2)

basics python

Python's eval(): Evaluating Expressions Dynamically

Python eval(): Evaluate Expressions Dynamically

intermediate python

Using Python datetime to Work With Dates and Times

Using Python datetime to Work With Dates and Times

intermediate

Regular Expressions: Regexes in Python (Part 1)

Regular Expressions: Regexes in Python (Part 1)

basics python