mistercrunch opened a new pull request, #34274:
URL: https://github.com/apache/superset/pull/34274
## Summary
Optimizes CI build times for Python 3.12 by addressing missing wheel
availability that was causing 10+ minute longer build times compared to other
Python versions.
## Changes
- **Added uv package caching**: Implements caching for uv packages using
`~/.cache/uv` to avoid repeated downloads
- **Enabled `--prefer-binary` flag**: Forces uv to prefer pre-built binary
wheels over source compilation for all pip install commands
- **Removed outdated comment**: Cleaned up comment about Python 3.12 being
disabled due to compatibility issues
## Performance Impact
- **Before**: Python 3.12 builds took 10+ minutes longer than other
versions due to compiling packages from source
- **After**: Should match performance of other Python versions by using
pre-built wheels when available
## Technical Details
The root cause was Python 3.12's newer release meant fewer packages had
pre-built wheels available, forcing compilation from source. The
`--prefer-binary` flag tells uv to prioritize binary wheels, and the caching
ensures we don't
re-download packages across CI runs.
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