John is an avid Pythonista and a member of the Real Python tutorial team.

Tutorials by John:

• Functional Programming in Python: When and How to Use It
• Modulo String Formatting in Python
• Recursion in Python: An Introduction
• Namespaces and Scope in Python
• Regular Expressions: Regexes in Python (Part 2)
• Regular Expressions: Regexes in Python (Part 1)
• Defining Your Own Python Function
• Python "for" Loops (Definite Iteration)
• Python "while" Loops (Indefinite Iteration)
• Conditional Statements in Python
• Python Program Lexical Structure
• Sets in Python
• Dictionaries in Python
• Introduction to Python 3
• Python Metaclasses
• Python Modules and Packages – An Introduction

Tutorials John Contributed to:

• Basic Input and Output in Python
• Interacting With Python
• Variables in Python: Usage and Best Practices
• A Guide to Modern Python String Formatting Tools
• Lists vs Tuples in Python
• How to Install Python on Your System: A Guide
• Strings and Character Data in Python
• Basic Data Types in Python: A Quick Exploration
• Operators and Expressions in Python
• Recursion in Python (Course)
• Metaclasses in Python (Course)
• Defining and Calling Python Functions (Course)
• Navigating Namespaces and Scope in Python (Course)
• Regular Expressions and Building Regexes in Python (Course)
• Using Sets in Python (Course)
• Python Modules and Packages: An Introduction (Course)
• Using Dictionaries in Python (Course)
• Conditional Statements in Python (if/elif/else) (Course)
• For Loops in Python (Definite Iteration) (Course)
• Mastering While Loops (Course)