Python Bytes

Pause a running Python program and dive straight into a Jupyter notebook with Nod. Explore Polars 2.0’s streaming engine, spill-to-disk execution, and row-order changes. See how django-cachalot handles ORM caching, why async transactions are challenging in Django, and discover new tools for navigating Markdown in the terminal.

Carol Willing, a Python community leader and educator; Brett Cannon, a CPython and packaging veteran; and Nick Moore, a Python and ML practitioner, mark a major milestone. They explore Jev’s fast classification, the new Packaging Council, supply-chain security, free-threaded Python, Python 3.15’s JIT, local AI, Saturn, and expanding access through Black Python Devs.

Python may finally get ?? and ??= for cleaner None handling, while optional chaining remains out of reach. The discussion covers Python 3.15’s surprise RC3, Python 3.10’s end of life, and asyncio.shield’s tricky cancellation behavior. Also explored: Pyxel’s retro game-making charm, SQLite tools, standard-library import safety, and a smart-fridge firmware fiasco.

A chilling PyPI supply-chain attack turns compromised packages into credential-stealing, self-propagating malware. TinyMongo offers an in-process MongoDB-compatible option, while Jev explores typed model outputs and open alternatives. Plus, a seemingly harmless __dict__ read can permanently slow Python attribute access, and a dungeon crawler makes Python 3.15 features feel like a game.

Python 3.15 gets Tachyon, a low-overhead profiler built for production troubleshooting. Cloudflare Python Workers reach general availability, while Flet 1.0 brings cross-platform apps to Python. Also covered: interactive static books with marimo, frozen dictionaries, AI-assisted security patching, upcoming conferences, and a hilarious big-data engineering interview.

Why settle for Pandas when Polars and DuckDB can tackle medium-sized data faster and with less memory? This conversation also explores unit-safe Pydantic models, running Rust inside Python with PyO3, Duck Lake’s open lakehouse vision, and AWS acquiring DuckDB Labs. Plus, UV’s signed binaries, macOS changes, charging gear, and the curious rise of “agentic” branding.

Explore all 117 EuroPython 2026 recordings, from free-threaded Python to AI and web development. The State of Django survey reveals a return to dependable tooling, while HTMX 4 refreshes server-rendered apps with new capabilities. Plus, a functional take on Python’s Zen, UV updates, a 1,024-byte interpreter, and IT terminology guaranteed to trigger panic.

OpenAI’s Python SDK moves to HTTPX2, bringing new certificate-trust considerations and integration changes. Explore TMOG, a deeply instrumented cross-platform task manager, and wrapture for safer mocking, tracing, and observability. Plus, LinkedIn exports become Markdown career data, EVE Online advances its Python 3 migration, uv reaches new mainframe architectures, and a polished offline Markdown editor arrives.

A tour of web dashboards that layer control planes over Traefik, Nginx and Caddy, keeping files as the source of truth. Highlights from Wagtail 8.0 and CPython adding RISC-V support for 64-bit Linux. Deep dive on Django switching to calendar versioning with three-year LTS releases. Short hits on built-in types' complexity, pruning duplicate Pythons, and AI tooling for local and cloud use.

Security releases for Python 3.10–3.12 and tarfile hardening make update urgency a hot topic. Codeberg’s new ban on mostly AI-written repositories and its implications for Git hosting are debated. A proposal to record source origins and SBOMs for reproducible PyPI builds is explored. Extras include tooling updates, post-quantum TLS notes, and a playful closing bit.