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Code example: Faster Polars Queries with Programmatic Expressions

Newsletter #246: Faster Polars Queries with Programmatic Expressions

Khuyen Tran November 12, 2025

Code example: PySpark: Avoid Double Conversions with applyInArrow

Newsletter #245: PySpark: Avoid Double Conversions with applyInArrow

Khuyen Tran November 10, 2025

Code example: Handle Large Data with Polars Streaming Mode

Newsletter #244: Handle Large Data with Polars Streaming Mode

Khuyen Tran November 7, 2025

Code example: Turn Your ML Tests Into Plain English with Behave

Newsletter #243: Turn Your ML Tests Into Plain English with Behave

Khuyen Tran November 5, 2025

Code example: Build Faster Test Workflows with pytest Markers

Newsletter #242: Build Faster Test Workflows with pytest Markers

Khuyen Tran November 3, 2025

Code example: Polars: Lazy CSV Loading with Query Optimization

Newsletter #241: Polars: Lazy CSV Loading with Query Optimization

Khuyen Tran October 31, 2025

Code example: Auto-Summarize Chat History with LangChain Middleware

Newsletter #240: Auto-Summarize Chat History with LangChain Middleware

Khuyen Tran October 29, 2025

Code example: Delta Lake: Insert + Update in One Operation

Newsletter #239: Delta Lake: Insert + Update in One Operation

Khuyen Tran October 27, 2025

Code example: Build Human-in-the-Loop AI Agents with LangChain

Newsletter #238: Build Human-in-the-Loop AI Agents with LangChain

Khuyen Tran October 24, 2025

Code example: Build Clean Visualizations with Altair Grammar

Newsletter #237: Build Clean Visualizations with Altair Grammar

Khuyen Tran October 22, 2025

Code example: Build Grammar Rules with PyParsing Without Regex Maintenance

Newsletter #236: Build Grammar Rules with PyParsing Without Regex Maintenance

Khuyen Tran October 20, 2025

Code example: Python 3.14: Type-Safe String Interpolation with t-strings

Newsletter #235: Python 3.14: Type-Safe String Interpolation with t-strings

Khuyen Tran October 17, 2025

Code example: Faker: Generate Realistic Test Data with One Command

Newsletter #234: Faker: Generate Realistic Test Data with One Command

Khuyen Tran October 15, 2025

Code example: Build Self-Documenting Regex with Pregex

Newsletter #233: Build Self-Documenting Regex with Pregex

Khuyen Tran October 13, 2025

Code example: Build Data Analysis with LangChain Pandas Agent

Newsletter #232: Build Data Analysis with LangChain Pandas Agent

Khuyen Tran October 10, 2025

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