## Summary
Upgrade ruff version to 0.9.9 and format existing code.
## Related Issues / Discussions
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## QA Instructions
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## Merge Plan
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## Checklist
- [ ] _The PR has a short but descriptive title, suitable for a
changelog_
- [ ] _Tests added / updated (if applicable)_
- [ ] _Documentation added / updated (if applicable)_
- [ ] _Updated `What's New` copy (if doing a release after this PR)_
This allows our tests to run in an isolated environment. For tests taht implicitly depend on import behaviour, this can prevent side-effects.
The function should only be used for tests.
by adding a layer with all the pytorch dependencies that don't change
most of the time.
## Summary
Every time the [`main` docker
images](https://github.com/invoke-ai/InvokeAI/pkgs/container/invokeai)
rebuild and I pull `main-cuda`, it gets another 3+ GB, which seems like
about a zillion times too much since most things don't change from one
commit on `main` to the next.
This is an attempt to follow the guidance in [Using uv in Docker:
Intermediate
Layers](https://docs.astral.sh/uv/guides/integration/docker/#intermediate-layers)
so there's one layer that installs all the dependencies—including
PyTorch with its bundled nvidia libraries—_before_ the project's own
frequently-changing files are copied in to the image.
## Related Issues / Discussions
- [Improved docker layer cache with
uv](https://discord.com/channels/1020123559063990373/1329975172022927370)
- [astral: Can `uv pip install` torch, but not `uv sync`
it](https://discord.com/channels/1039017663004942429/1329986610770612347)
## QA Instructions
Hopefully the CI system building the docker images is sufficient.
But there is one change to `pyproject.toml` related to xformers, so it'd
be worth checking that `python -m xformers.info` still says it has
triton on the platforms that expect it.
## Merge Plan
I don't expect this to be a disruptive merge.
(An earlier revision of this PR moved the venv, but I've reverted that
change at ebr's recommendation.)
## Checklist
- [ ] _The PR has a short but descriptive title, suitable for a
changelog_
- [ ] _Tests added / updated (if applicable)_
- [ ] _Documentation added / updated (if applicable)_
- [ ] _Updated `What's New` copy (if doing a release after this PR)_
SQLite cursors are meant to be lightweight and not reused. For whatever reason, we reuse one per service for the entire app lifecycle.
This can cause issues where a cursor is used twice at the same time in different transactions.
This experiment makes the session queue use a fresh cursor for each method, hopefully fixing the issue.
