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PyCon US 2025

Anton Sipos (25)

TIL uv doesn't byte compile installed packages (can opt-in), while pip does does byte compile by default (can opt-out).

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TIL: uv can run a command with a "one off" dependency without installing it into your current venv. `uv run --with pdpp example.py`

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I'm heading out to Pittsburgh on Friday, but not arriving to PIT until about 6:30pm. Are there any events happening later Friday evening?

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Sadly due to my late arrival at I'll have to miss the typing summit. The announcements of Ty and Pyrefly are the biggest news of the conference so far. Excited to see how well these work as LSP servers going forward.

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Happy end of day 1 everyone - looking forward to a good day 2 tomorrow.

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A preview of the Expo Hall for tomorrow.

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OH: "That's very Excel" at the open space

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TIL at : uv sync will install the current project / directory as an editable package. Perfect for the sprints! zanieb recommends uv sync as the preferred interface over the "imperative" uv pip workflow.

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OH: "Most of you don't live on a tropical island. That's a little bit sad." (said by someone living on Curacao)

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History of virtualenv / package Python tools at zanieb's talk at

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