Talk Python To Me

Every ship in EVE Online eventually undocks and leaves the station. This time, it's the whole game. EVE has run on Python 2 since it launched in 2003, all 2.4 million lines of it, on a custom Stackless interpreter that stopped at 3.8 and was archived last year. Destination: Python 3.12. The route runs through 6,500 lines of division that decide who wins a fight, and 100 gigabytes of pickled Python objects that have to survive the jump intact. Kristinn Sigurbergsson was on this show ten years ago. He's back, with Jamie Bannister, who is flying the EVE Online migration right now, and Thomas Dähling, who took EVE Frontier through first. In EVE, a destroyed ship is gone for good. There are no do-overs, and the universe has to stay online the whole way.

Episode sponsors

Sentry Error Monitoring, Code talkpython26

Talk Python Courses

Links from the show

Guests

Jamie Bannister: linkedin.com

Thomas Dähling: linkedin.com

Kristinn Sigurbergsson: linkedin.com

EVE Online: www.eveonline.com

EVE Frontier: evefrontier.com

2.4 million lines of Python: www.eveonline.com

Example of graphics, ships walk-through: www.youtube.com

Stackless: www.stackless.com

futurize: python-future.org

blue: github.com

Dev blog on the Frontier upgrade: evefrontier.com

Upgrading CARBON to Python 3: www.youtube.com

carbon-scheduler: github.com

Scheduling in Carbon: Leaving Stackless Python Behind: www.youtube.com

All of Carbon is on GitHub now: github.com

did a whole course: training.talkpython.fm

Trade Wars BBS (Wikipedia): en.wikipedia.org

TW 3002 - TradeWars 2002, reimagined as a modern browser game: www.reddit.com

Watch this episode on YouTube: youtube.com

Episode #564 deep-dive: talkpython.fm/564

Episode transcripts: talkpython.fm

Theme Song: Developer Rap

🥁 Served in a Flask 🎸: talkpython.fm/flasksong

---== Don't be a stranger ==---

YouTube: youtube.com/@talkpython

Bluesky: @talkpython.fm

Mastodon: @talkpython@fosstodon.org

X.com: @talkpython

Michael on Bluesky: @mkennedy.codes

Michael on Mastodon: @mkennedy@fosstodon.org

Michael on X.com: @mkennedy

Lint the entire CPython code base from scratch. It takes 0.3 seconds. Three blinks of an eye.



That is ruff, and it is written in Rust. So are Pydantic, Polars, uv, and Granian. Rust shows up in Python three ways: tools that happen to be Rust, libraries Python imports, and servers that run Python inside Rust. This is Rust for Python developers, not Rust experts.



Christopher Trudeau is back on Talk Python to discuss Rust and his latest course Up and Running with Rust. The core rule is that only one thing can own a value at a time. Pass it around freely in Python and the garbage collector cleans up. Do that in Rust and it will not compile.

Episode sponsors

Sentry Error Monitoring, Code talkpython26

Python in Production

Talk Python Courses

Links from the show

Up and Running with Rust course: training.talkpython.fm

Rust: rust-lang.org

pydantic: pydantic.dev

ruff: docs.astral.sh

granian: github.com

By example: doc.rust-lang.org

rust-lang.org: rust-lang.org

rustup.rs: rustup.rs

crates.io: crates.io

main.rs: main.rs

PyO3: github.com

https://github.com/ritwiktiwari/awesome-python-rs: github.com

ty: docs.astral.sh

pyrefly: pyrefly.org

uv: github.com

polars: pola.rs

Watch this episode on YouTube: youtube.com

Episode #563 deep-dive: talkpython.fm/563

Episode transcripts: talkpython.fm

Theme Song: Developer Rap

🥁 Served in a Flask 🎸: talkpython.fm/flasksong

---== Don't be a stranger ==---

YouTube: youtube.com/@talkpython

Bluesky: @talkpython.fm

Mastodon: @talkpython@fosstodon.org

X.com: @talkpython

Michael on Bluesky: @mkennedy.codes

Michael on Mastodon: @mkennedy@fosstodon.org

Michael on X.com: @mkennedy

How many files does your query read before it reads any data? On some data lakes, you go through JSON and metadata files first, just to learn which Parquet files matter. DuckLake asks one SQL question instead. The metadata lives in a real database. The data stays in plain Parquet. That's the entire format.



Pedro Holanda joined DuckDB in 2018, when it was still a research prototype at CWI. He's the lead DuckLake developer. Guillermo Sanchez Dionis works on DuckLake and the new Quack protocol.



With Quack as the catalog, DuckLake handles 200 transactions a second under heavy contention. No other open table format comes close.

Episode sponsors

Six Feet Up

Talk Python Courses

Links from the show

Guests

Pedro Holanda: pedroholanda.org

Guillermo Sanchez: linkedin.com

PhD on progressive indexes: ir.cwi.nl

SQLite: www.sqlite.org

Litestream: litestream.io

boring hardware: talkpython.fm

DuckDB: duckdb.org

episode 491: talkpython.fm

Iceberg: iceberg.apache.org

manifesto: ducklake.select

DuckLake: ducklake.select

spec: ducklake.select

this diagram: blobs.talkpython.fm

Data inlining: ducklake.select

ducklake-dataframe: github.com

Polars course: training.talkpython.fm

CSV parser: duckdb.org

Zero-copy Arrow: duckdb.org

ART index: duckdb.org

async I/O: duckdb.org

v1.0: ducklake.select

Git-like branching: ducklake.select

Watch this episode on YouTube: youtube.com

Episode #562 deep-dive: talkpython.fm/562

Episode transcripts: talkpython.fm

Theme Song: Developer Rap

🥁 Served in a Flask 🎸: talkpython.fm/flasksong

---== Don't be a stranger ==---

YouTube: youtube.com/@talkpython

Bluesky: @talkpython.fm

Mastodon: @talkpython@fosstodon.org

X.com: @talkpython

Michael on Bluesky: @mkennedy.codes

Michael on Mastodon: @mkennedy@fosstodon.org

Michael on X.com: @mkennedy

How many cores does your machine have, 10, 18? Your async Python code uses just one of them. That isn't a bug in asyncio. That's the design, and optimizing event loops to be faster by 20% doesn't change it. So Giovanni Barillari started over. Joe is the creator of Granian, the Rust-based server that powers Talk Python. His new project is TonIO, an async runtime written from scratch for free-threaded Python. Real threads, a handful of primitives instead of asyncio's pile of them, and it flat out refuses to start if the GIL is on.

Episode sponsors

Sentry Error Monitoring, Code talkpython26

Python in Production

Talk Python Courses

Links from the show

Guest

Giovanni Barillari: github.com

Granian: github.com

Hyper: github.com

Free threaded Python: docs.python.org

Sort of: labs.quansight.org

did a whole course: training.talkpython.fm

uvloop: github.com

rloop: github.com

TonIO: github.com

your EuroPython 2026 talk: www.youtube.com

Michael's Cutting Python Web App Memory Over 31% Article: mkennedy.codes

Watch this episode on YouTube: youtube.com

Episode #561 deep-dive: talkpython.fm/561

Episode transcripts: talkpython.fm

Theme Song: Developer Rap

🥁 Served in a Flask 🎸: talkpython.fm/flasksong

---== Don't be a stranger ==---

YouTube: youtube.com/@talkpython

Bluesky: @talkpython.fm

Mastodon: @talkpython@fosstodon.org

X.com: @talkpython

Michael on Bluesky: @mkennedy.codes

Michael on Mastodon: @mkennedy@fosstodon.org

Michael on X.com: @mkennedy

In 2020, a gastroenterologist in Glasgow did the math on his new research study and came up with 30,000 samples, arriving over two years from three cities and a dozen hospitals. He asked around about how researchers keep track of that. The answer was Microsoft Excel. Shaun Chuah had written some HTML by hand in Notepad back in high school and that was about the whole of his programming experience, so he opened the Django tutorial and started reading. Six years later that app is Foundry120, holding 10 terabytes of clinical and genomics data with an agentic AI running on top of it.

Episode sponsors

Sentry Error Monitoring, Code talkpython26

Talk Python Courses

Talk Python Courses

Links from the show

Guest

Shaun Chuah: github.com

Up and Running with Rust Course: talkpython.fm

Foundry120: www.foundry120.com

Designing Data Intensive Applications: www.oreilly.com

Microsoft Foundry: ai.azure.com

ChatIBD: www.chatibd.com

Blog: shaunchuah.github.io

@drshaunchuah: x.com

github.com/shaunchuah: github.com

Watch this episode on YouTube: youtube.com

Episode #560 deep-dive: talkpython.fm/560

Episode transcripts: talkpython.fm

Theme Song: Developer Rap

🥁 Served in a Flask 🎸: talkpython.fm/flasksong

---== Don't be a stranger ==---

YouTube: youtube.com/@talkpython

Bluesky: @talkpython.fm

Mastodon: @talkpython@fosstodon.org

X.com: @talkpython

Michael on Bluesky: @mkennedy.codes

Michael on Mastodon: @mkennedy@fosstodon.org

Michael on X.com: @mkennedy