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PyCoder���s Weekly: Issue #683: Narwhals, ty, LangChain, and More (May 27, 2025)
- Narwhals is a compatibility layer between DataFrame libraries supporting pandas, Polars, DuckDB, PySpark, and PyArrow.
- ty, formerly known as Red-Knot, is a new type checker introduced by Astral for Python.
- LangChain library allows building Large Language Model (LLM) assisted applications through a step-by-step video course.
- Articles cover topics like Random Forest in Python, Python web deployment, Pyrefly Python type checker, data grouping using Polars, and more.
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