Itertools, Circular Imports, Mock, and More
#722 – FEBRUARY 17, 2026 VIEW IN BROWSER
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5 Essential Itertools for Data Science
Learn 5 essential itertools methods to eliminate manual feature engineering waste. Replace nested loops with systematic functions for interactions, polynomial features, and categorical combinations.
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A Fun Python Puzzle With Circular Imports
A deep inspection of just what happens when you write from ... import ... and how that impacts circular import references in your code.
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Improving Your Tests With the Python Mock Object Library
Master Python testing with unittest.mock. Create mock objects to tame complex logic and unpredictable dependencies.
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Python 3.15.0 Alpha 6 Released
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