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📅 Today’s Picks

Stop Manually Tracing Dependencies with uv tree

Problem

Debugging version conflicts requires knowing which packages depend on what. But tracing these relationships manually through nested dependencies is tedious.

Solution

uv tree handles this automatically, displaying the full dependency graph so you can trace any package back to its source.

Key capabilities:

• Complete dependency visualization
• Flag dependencies with available updates
• Find which packages depend on a specific library
• Filter the tree to show only a specific package’s dependencies

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Polars v1.37.0: Faster Lookups with min_by and max_by

Problem

Finding the row with the minimum or maximum value based on another column requires sorting, grouping, or complex filter expressions.

Solution

Polars v1.37.0 adds min_by and max_by expression methods. These methods find minimum or maximum values based on any column in a single, readable expression.

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☕️ Weekly Finds

lmql [LLM] – A programming language for constraint-guided and efficient LLM programming based on a superset of Python.

helicone [MLOps] – Open-source LLM observability platform with one-line integration for monitoring, analytics, and management.

responses [Python Utils] – A utility library for mocking out the Python Requests library in tests.

Looking for a specific tool? Explore 70+ Python tools →

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📚 Latest Deep Dives

What’s New in pandas 3.0: Expressions, Copy-on-Write, and Faster Strings – Learn what’s new in pandas 3.0: pd.col expressions for cleaner code, Copy-on-Write for predictable behavior, and PyArrow-backed strings for 5-10x faster operations.

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