Conglomerated changes to optimize venv usage in pipeline
#42486
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Pull Request Overview
This pull request optimizes virtual environment usage in Azure DevOps pipelines by introducing UV (a fast Python package installer) as the preferred tool while maintaining fallbacks to traditional pip commands. The changes streamline environment setup and package installation across the build pipeline.
Key changes:
- Integration of UV package manager with automatic fallback to pip when UV is unavailable
- Simplified virtual environment activation by removing manual activation scripts in favor of environment variables
- Addition of a new pipeline template for UV installation across different operating systems
Reviewed Changes
Copilot reviewed 11 out of 11 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| eng/scripts/create-venv.ps1 | Added UV detection and usage for virtual environment creation with fallback to virtualenv |
| eng/scripts/activate-venv.ps1 | Simplified activation by setting VIRTUAL_ENV and PATH variables instead of sourcing activation scripts |
| eng/scripts/Language-Settings.ps1 | Added UV pip usage for package installations with fallback logic |
| eng/pipelines/templates/steps/use-venv.yml | Integrated UV installation template into virtual environment setup |
| eng/pipelines/templates/steps/seed-virtualenv-wheels.yml | Replaced pip with UV for virtualenv installation |
| eng/pipelines/templates/steps/release-candidate-steps.yml | Removed manual activation scripts and switched to UV for dependency installation |
| eng/pipelines/templates/steps/install-uv.yml | New template for cross-platform UV installation |
| eng/pipelines/templates/steps/build-test.yml | Simplified by removing activation scripts and using UV for package installation |
| eng/pipelines/templates/steps/build-package-artifacts.yml | Updated to use UV and removed activation script dependencies |
| eng/pipelines/templates/steps/build-extended-artifacts.yml | Switched from pip to UV for dependency installation |
| eng/pipelines/templates/steps/analyze.yml | Replaced pip with UV for tool installation |
Co-authored-by: Copilot <[email protected]>
scbedd
commented
Aug 13, 2025
scbedd
commented
Aug 13, 2025
…lly remove a UsePython3.10 + install build tooling + SetTestPipeline + SetToxTargets. none of those are python 3.10 specific and can be moved to run on the same python version that is running in the build
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/azp run python - core |
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Azure Pipelines successfully started running 1 pipeline(s). |
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Kicked |
benbp
approved these changes
Aug 14, 2025
2 tasks
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This PR:
uvto create this, with optional fallback tovirtualenv.InstallUvtouse-venv.ymltemplate. Defaults totrue. When present,uvis installed, and variable$(PIP_EXE)is set touv pip. Ifuvis not installed in this template,python -m pipwill be set instead.$(PIP_EXE)wherever we used to callpython -m pip. So far I've gone throughjobs/ci.ymland any template that is referenced from that for my update.set python 310,install azure-sdk-tools, andset tox environments. This script should run on any platform we support, so we moved it beneath the part of the template inbuild-tests.yml. Look for the yml aroundSetTestPipelinebeing moved.Impacts of using
uvto improve install times are most visible here:On average we're shaving ~1 minute or more off of each job.