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🤝 COLLABORATION

Build Safer APIs with Buf – Free Workshop

Building APIs is simple. Scaling them across teams and systems isn’t. Ensuring consistency, compatibility, and reliability quickly becomes a challenge as projects grow.

Buf provides a toolkit that makes working with Protocol Buffers faster, safer, and more consistent.

Join Buf for a live, one-hour workshop on building safer, more consistent APIs.

When: Nov 19, 2025 • 9 AM PDT | 12 PM EDT | 5 PM BST

What you’ll learn:

• How Protobuf makes API development safer and simpler
• API design best practices for real-world systems
• How to extend Protobuf to data pipelines and streaming systems

→ Register for the workshop

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📅 Today’s Picks

Faster Polars Queries with Programmatic Expressions

Problem

When you want to use for loops to apply similar transformations, each Polars with_columns() call processes sequentially.

This prevents the optimizer from seeing the full computation plan.

Solution

Instead, generate all Polars expressions programmatically before applying them together.

This enables Polars to:

• See the complete computation plan upfront
• Optimize across all expressions simultaneously
• Parallelize operations across CPU cores

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itertools.chain: Merge Lists Without Intermediate Copies

Problem

Standard list merging with extend() or concatenation creates intermediate copies.

This memory overhead becomes significant when processing large lists.

Solution

itertools.chain() lazily merges multiple iterables without creating intermediate lists.

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☕️ Weekly Finds

fiftyone [ML] – Open-source tool for building high-quality datasets and computer vision models

llama-stack [LLM] – Composable building blocks to build Llama Apps with unified API for inference, RAG, agents, and more

grip [Python Utils] – Preview GitHub README.md files locally before committing them using GitHub’s markdown API

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

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