Top 10 GitHub — Trending Python — Sep 7–Sep 13, 2026

Python has consolidated its grip on the open-source ecosystem, with all ten repositories on this week's GitHub trending list written in a single language. The week of September 7–13, 2026 reveals a developer community that is simultaneously educational and ambitious — building AI agents while cataloguing public APIs and free programming books. public-apis/public-apis leads with 476,705 stars, serving as the definitive directory for developers hunting free API endpoints. Meanwhile, EbookFoundation/free-programming-books has accumulated 667,422 forks — the highest fork count on this entire list — signaling that foundational learning resources still drive massive collaborative effort. NousResearch/hermes-agent breaks into the top five with 242,783 stars, reflecting surging interest in agentic AI frameworks. Trending repositories on GitHub capture raw developer activity — stars indicate popularity, forks indicate community contribution — and together they paint a picture of where minds are focused right now. This list reflects what developers were starring, forking, and building during a single week in September 2026.