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uv: continue Python installation after bootstrapping uv - #1872
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Eleanor Boyd (eleanorjboyd) merged 3 commits intoOct 6, 2026
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Eleanor Boyd (eleanorjboyd) merged 3 commits into
Eleanor Boyd (eleanorjboyd) merged 3 commits into
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Keep the standalone installer's uv path for verification, Python installation and listing, and subsequent uv operations without changing the extension host PATH. Add bootstrap, destination, and cache regression coverage for microsoft#1871. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Fixes #1832. Depends on #1872, which retains a newly installed uv executable for the current extension-host session. ## Problem Creating a **Global** environment on a machine without uv failed with **Failed to fetch available Python versions**. The flow attempted `uv python list` before reaching the existing uv installation path. ## User experience When uv is missing, Global environment creation now explains why it is required and offers: - **Install uv** — installs uv, then continues directly to the Python version picker using #1872's retained executable. - **Other installation options** — opens the official [Install a Python interpreter](https://code.visualstudio.com/docs/python/python-tutorial#_install-a-python-interpreter) guide. - **Cancel** — cancels quietly without showing a misleading version-fetch error. If uv installation fails, the error offers **View Logs**. When uv is already available, the version picker opens without an additional prompt. This prevents a broken first-run experience without introducing lasting configuration or PATH side effects. --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Fixes #1871.
This prevents a broken first-run experience without introducing lasting configuration or PATH side effects.
Problem
When uv's install directory is not already on the extension host's PATH, the official installer can succeed but the subsequent bare
uv --versionlookup still fails. Python installation then stops atuvNotOnPath.Updating shell startup files does not update the already-running extension host's environment. Resetting the availability cache alone cannot fix this.
Changes