Let's Build A Simple Interpreter

This repository contains the source code and examples for the blog series Let's Build A Simple Interpreter.
The series takes you step by step through creating a basic interpreter in Python, introducing fundamental ideas behind interpreters such as lexing, parsing, abstract syntax trees, and evaluation.

The goal is to make the concepts approachable and practical, so you can follow along with the blog posts, run the code yourself, and understand how interpreters work under the hood.
Each part builds on the previous one, gradually adding new language features and complexity.

• Let's Build A Simple Interpreter. Part 1.
• Let's Build A Simple Interpreter. Part 2.
• Let's Build A Simple Interpreter. Part 3.
• Let's Build A Simple Interpreter. Part 4.
• Let's Build A Simple Interpreter. Part 5.
• Let's Build A Simple Interpreter. Part 6.
• Let's Build A Simple Interpreter. Part 7: Abstract Syntax Trees
• Let's Build A Simple Interpreter. Part 8.
• Let's Build A Simple Interpreter. Part 9.
• Let's Build A Simple Interpreter. Part 10.
• Let's Build A Simple Interpreter. Part 11.
• Let's Build A Simple Interpreter. Part 12.
• Let's Build A Simple Interpreter. Part 13: Semantic Analysis
• Let's Build A Simple Interpreter. Part 14: Nested Scopes and a Source-to-Source Compiler
• Let's Build A Simple Interpreter. Part 15.
• Let's Build A Simple Interpreter. Part 16: Recognizing Procedure Calls
• Let's Build A Simple Interpreter. Part 17: Call Stack and Activation Records
• Let's Build A Simple Interpreter. Part 18: Executing Procedure Calls
• Let's Build A Simple Interpreter. Part 19: Nested Procedure Calls