[CHORE] Rebuild the Codespaces devcontainer on Python 3.12 and uv - #60
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🚀 Workshop branch preview deployed!You can review your changes at https://staging.overturemaps.org/workshop/pr/60/index.html ♻️ Last refreshed: 2026-10-01T01:33:45Z |
Seth Fitzsimmons (sethfitz)
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universal:2 is a frozen Ubuntu 20.04 image that does not record which Python it ships, so pyproject.toml's requires-python >= 3.12 held only by accident. The devcontainers/python:3-3.12-trixie image pins the Python minor that .python-version names (3.12.14 as of image 3.2.3). postCreate now runs `uv sync --frozen`, the same path the README gives for local setup, so Codespaces installs exactly what uv.lock records and never rewrites uv.lock in an attendee's workspace. The venv lands in .venv/, which is prepended to PATH and set as the default interpreter so terminals and the Jupyter kernel picker find it. UV_LINK_MODE=copy silences the hardlink warning uv prints because the cache and /workspaces sit on different filesystems. Signed-off-by: Seth Fitzsimmons <seth@mojodna.net>
Verified working: python 3.12.14, duckdb spatial+h3, and the notebook kernel picker recommends .venv on selection. Signed-off-by: Seth Fitzsimmons <seth@mojodna.net>
The schema slides pipe GeoParquet through gpq and jq into the validator (slide 17). duckdb was already installed; gpq comes from its GitHub release via the gh-release feature, pinned to 0.24.0, the last release. Built as linux/amd64 (Codespaces' arch) 2026-09-26: gpq 0.24.0, jq 1.8.2, duckdb 1.5.5 on PATH. Signed-off-by: Seth Fitzsimmons <seth@mojodna.net>
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What's in this PR?
mcr.microsoft.com/devcontainers/universal:2(frozen Ubuntu 20.04, undeclared Python) tomcr.microsoft.com/devcontainers/python:3-3.12-trixie, matching.python-versionuv sync --frozen, the same command the README gives for local setup, via theghcr.io/va-h/devcontainers-features/uvfeature.venvgoes first onPATHand is set as the default interpreter, sopython,jupyter, and the notebook kernel picker all use itpython --version→ 3.12.14,duckdb -c "LOAD spatial; LOAD h3; SELECT 1"returns a row, andduckdb/geopandas/lonboardall import. The kernel picker isn't pre-selected on a fresh notebook (normal VS Code behavior — no notebook has had a kernel chosen before), but.venvis the recommended option when you pick one