#337: Backtracking For a Package

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Michael #1: Ruff PyCharm plugin

• via John Hagen
• Ruff PyCharm plugin has great integration, it will highlight Ruff lint errors in the IDE as you type and you can even apply Alt+Enter (⌥⏎ on Mac) quick fixes through the IDE.
• Ruff will automatically fix the fixable issues.
• John also added additional PyCharm-specific instructions for black/Ruff

Brian #2: Writing Python like it's Rust

• Kobzol
• Rust lessons guiding use of types and type hints in Python
  • Add type hints tun function signatures
  • Use dataclasses instead of tuples or dictionaries to increase clarity and type safety
  • Union types to clarify | typing

Michael #3: Pip 23.1 Released - Massive improvement to backtracking

• Pip 23.1 was released last month
• Highlight the significant improvement in backtracking that is part of the requirement resolver process in Pip. This process involves Pip finding a set of packages that meet your requirements and whose requirements themselves don't conflict.
• Prior to Pip 20.3, the default process for Pip would allow conflicting requirements to install if they were transitive dependencies where the last one specified would be the one installed.
• Once the new resolver was turned on by default it immediately hit problems where backtracking would get stuck for a long time.
• Pip separates out the resolution logic into a library called resolvelib. It had been discovered that there was a logical error under certain circumstances, and also there was a known better backtracking technique it could employ called backjumping.
• Both of these were recently fixed and implemented in resolvelib, which were then vendored in to Pip 23.1.

Brian #4: Markdown Code Runner

• markdown-code-runner is a Python package that automatically executes code blocks within a Markdown file, including hidden code blocks, and updates the output in-place.
• Works with Python & Bash
• see also cog

Extras

Brian:

• Use code SPRING2023 to get 50% off “Python Testing with pytest, 2nd edition” before June 1.

Michael:

• Python 3.12.0a7 is out
• python3 -m venv --upgrade-deps venv (via John Hagen)
• Talk submissions are now open for both remote and in-person talks at the 2023 PyConZA? The conference will be held on 5 and 6 October 2023 in Durban, South Africa. South Africa is GMT+2, so the times are convenient for Africa, Europe and much of Asia, although probably less so for the rest of the world. All details are on za.pycon.org - via Kim van Wik
• Trail discovery/riding apps
  • onX offroad
  • Gaia
  • Picture of Michael on one of these trails

Joke: User Inyerface