What Are uv Overrides and Constraints?

· Python Developer Tooling Handbook – pydevtools.com · Aug. 15, 2026, 1:10 p.m.
Summary
The blog post discusses how to manage package dependencies in a Python project using uv, specifically addressing the need to pin a version of Werkzeug to avoid bugs. It explains the mechanisms of override-dependencies, constraint-dependencies, and [tool.uv.sources] that modify dependency resolution, emphasizing the importance of selecting the correct one to prevent silent failures or broken resolutions.
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