Name of Failure:

uv install fails during setup on gcpkms/azurekms remote test hosts due to missing pip

Link to task:

https://spruce.corp.mongodb.com/task/mongo_python_driver_kms_test_gcpkms_70573fe56841ef070959af4b23bdef79dd14f6de_26_08_03_13_41_12/logs?execution=0

Context of when and why the failure occurred:

The test-gcpkms task in the mongo-python-driver project failed during setup on 2026-08-03. The task provisions a fresh GCE instance, then clones drivers-evergreen-tools and runs its setup, which calls ensure_uv() to bootstrap the uv tool. On this host, the system Python has no pip module, and the ensurepip fallback did not recover it, so ensure_uv() could not install uv and setup.sh aborted before any tests ran. The same gap applies to the analogous azurekms remote host.

This is a regression introduced by DRIVERS-3564, which replaced the prior filesystem scan for a usable Python interpreter with ensure_uv(). The new path requires pip (or an already-installed uv) to bootstrap uv, a dependency the old approach never needed, and the gcpkms/azurekms remote provisioning scripts were not updated to install it.

Stack trace:

uv not found on PATH; installing with 'python3 -m pip install --user uv'...
/usr/bin/python3: No module named pip
/usr/bin/python3: No module named pip
ERROR: could not find or install uv.

Install it manually, then re-run:
https://docs.astral.sh/uv/getting-started/installation/

If you believe uv/pip should already be available in this environment,
please file a ticket in the DEVPROD Jira project:
https://jira.mongodb.org/projects/DEVPROD
ERROR Command '['./setup.sh']' returned non-zero exit status 1.
error: recipe setup-tests failed on line 93 with exit code 1