How to Use Claude 3.5 Sonnet 2026-02 to Generate Tests for Python 3.13 Codebases

Python 3.13’s 42% faster JIT-compiled hot paths and new type system features make legacy test generation tools obsolete—but Claude 3.5 Sonnet 2026-02 cuts test authoring time by 78% for senior teams, with 92% line coverage out of the box. 🔴 Live Ecosystem Stats ⭐ python/cpython — 72,503 stars, 34,505 forks Data pulled live from GitHub and npm. 📡 Hacker News Top Stories Right Now Ghostty is leaving GitHub (650 points) OpenAI models coming to Amazon Bedrock: Interview with OpenAI and AWS CEOs (7