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PyCoder���s Weekly: Issue #685: Polars Data Validation, reversed, Counting Words, and More (June 10, 2025)
- This issue of PyCoder's Weekly covers data validation libraries for Polars DataFrames, how to loop in reverse in Python, preventing Postgres slowdowns in Python apps, and building a word count command-line app in Python.
- The post explores Python data validation libraries supporting Polars DataFrames and discusses the best ones for specific use cases.
- It also covers how to reverse iterables in Python, tips to avoid Postgres performance regressions, and a self-paced coding challenge to build a word count command-line app.
- Additionally, there are updates on Python security releases, Django security releases, and upcoming Python events like PyCon NL 2025 and PyCon US 2025.
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