Colab-first dependencies, vendored plotting helpers, Colab smoke tests - #10
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Dependencies: - pyproject.toml documents why Colab-preinstalled packages are unconstrained and where reproducibility comes from (uv.lock locally). - colab_bootstrap.sh installs requirements-colab.txt with --no-deps: only what Colab lacks, never touching preinstalled (already imported) packages, so no runtime restart. Also no more PEP 517 build just to read a dependency list. - Runtime deps now list what the notebooks import; jupyter moved to dev. - Dropped jupyterlab~=3.6, ipympl, jupyter_nbextensions_configurator and the jupyter-server<2 pin they forced. Dev frontend is now notebook 7. - No [build-system]; [tool.uv] package = false. Vendoring: - freshfig, nRowCol and is_notebook (was mpl_tools.is_notebook_or_qt) were the only things used from mpl-tools; rewritten in tools/plotting.py using only stable, public matplotlib/IPython API. mpl-tools kept breaking on Colab's matplotlib upgrades via its use of internals. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Run inside Google's published Colab runtime image: bootstrap, check that no preinstalled package changed (the restart hazard), execute both notebooks. Monthly cron catches Colab's upgrades; also on PRs/pushes touching Colab files. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
`minires~=0.3.0` replaces the git-commit pin, in `pyproject.toml`, `requirements-colab.txt` and the lockfile. minires is 0.x, so a minor bump may break the API; the pin therefore advances deliberately, with the notebooks checked against the new version. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
nbclient's asyncio loop intermittently misses the execute-reply of cells that emit a burst of ipywidgets comm messages (our interact/toggle_items cells), stalling for the full per-cell timeout ~50% of the time. Seen with nbclient 0.11, jupyter_client 8.10, pyzmq 25-27, ipykernel 6 and 7. The blocking client polls synchronously and is unaffected (8/8 fast). Also: -v prints each cell with its duration; timeouts are failures. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Summary
mpl-toolshelpers actually used (freshfig,nRowCol,is_notebook) intotools/plotting.py, using only stable API; dropmpl-tools.pyproject.toml: Colab-preinstalled packages unconstrained,uv.lockfor local reproducibility,requirements-colab.txt+pip install --no-depson Colab so nothing already imported gets reinstalled (no runtime restart), and no PEP 517 build just to read a dependency list.jupyterlab~=3.6,ipympl,jupyter_nbextensions_configuratorand thejupyter-server<2pin; dev frontend is notebook 7.tests/colab/running inside Google's published Colab runtime image (bootstrap, freeze diff, execute both notebooks), via thecolab-compatworkflow: monthly, on PRs, and on pushes to master touching Colab files.Test plan
tests/colab/run_nb.py).colab-compatworkflow passes on this PR.🤖 Generated with Claude Code