Count Items in Python with Counter
Learn how to count items in a list using Python’s Counter. A simple, beginner-friendly guide with code examples.
PEP 803: Making Free-Threaded Python Production-Ready
PEP 803 stabilizes the free-threaded ABI for Python 3.13+, eliminating the C-extension fragmentation that blocked GIL-free Python from production.
What Enumerate Does in Python, Explained Gently
Imagine you have a shopping list. You pick it up and count as you go. “One for milk, two for eggs, three for bread…” You do not need a separate pencil. The…
Python 3.14.5 Reverts the Generational Garbage Collector
Python 3.14.5 shipped May 10, 2026 with a critical garbage collector reversion back to the generational collector. Here’s why the incremental approach failed in production, what security fixes matter, and how to upgrade safely.
Python 3.14’s GC Revert: The Memory Spike Fix
Python 3.14’s incremental GC raised memory 5x in production. Here’s why it was reverted, how to detect it, and what to do.
Python Lazy Imports: PEP 810 for Faster Startup
Python 3.15 adds lazy import syntax to defer module loading. Learn how PEP 810 cuts CLI startup time and replaces lazy_loader boilerplate.
PEP 803: What abi3t Means for Python C Extension Authors
PEP 803 introduces abi3t — a stable ABI for free-threaded Python. What C extension authors must change and how to compile for both builds.
Python 3.15 frozendict: Immutable Built-in Dicts Explained
PEP 814 brings frozendict to Python 3.15 — built-in immutable, hashable dict. Usage, lru_cache patterns, and Migration from third-party packages.
Free-Threaded Python 3.14: Migration Guide
Python 3.14 ships official free-threaded support. Learn how to install, benchmark, and migrate multithreaded code without the GIL — with real benchmarks.
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