Search for a command to run...
Series
In this series, I try to capture different aspects of building a Python interpreter from scratch using Rust and minimal dependencies. It is FUN!
Before we begin, let’s agree that “online” in this context means accepting bytes from localhost. Deal? Deal. You may recall that sometime last century I had the brilliant idea to boot a Flask server from inside Memphis. Trudging toward that goal expo...
Nary a week ago, I typed a harmless expression into my Memphis REPL: 4 == 4 == 4. My REPL’s response? False. I’m glad it can speak its mind, but the gall! Apparently, you can’t just treat a chain of comparison operators like a tree of binary expressi...
Think globally, act locally. Who knew this oft-touted phrase was referring to Python bytecode? Last time we acted on learning how local variables work, today let’s think about how global variables might work. I came into my own bytecode journey assum...
Local variables are stored on the stack. This line tormented me for years. I could spout it in an interview, but I didn’t really know what it meant. I could pull up the diagram showing the stack growing upwards and the heap growing downwards. And I d...
My parser test suite was a house of cards I’ve never been prouder to see collapse. I found a pattern that worked, kept working, and then worked a little too well. Until rust-analyzer couldn't process my file anymore. Best practice says to refactor be...
Happy March! This month I am putting a bow on my Q1 roadmap and continuing to unify the two Memphis execution engines. I chose an update post because I want to “build in public.” What follows is what has been on my mind! I don’t write advice posts (W...
