Python open source projects ranked by AI-assisted commits – 2026 Q3

In Jul–Sep 2026, the median project among 17 Python open source projects had 0.6% of its commits name an AI coding assistant; the highest was pandas, at 66.7%. 13 of 17 named one at least once.

#	Repository	Jul–Sep 2026	Apr–Jun 2026	Commits (12 mo)	Active authors (12 mo)	Health	Named most
1	pandas	66.7%	56.5%	2,944	401	steady	Claude, Devin
2	pytest	30.0%	5.0%	893	124	steady	Claude, Codex
3	Home Assistant	19.2%	16.9%	20,578	1,419	peak	Claude, GitHub Copilot
4	CPython	18.0%	8.5%	5,027	784	steady	Claude, GitHub Copilot
5	NumPy	2.0%	2.2%	2,477	237	steady	Claude, Codex
6	SciPy	1.8%	2.4%	2,238	227	steady	Claude, Warp
7	scikit-learn	1.3%	0.7%	989	191	steady	GitHub Copilot, Cursor
8	Pydantic	1.0%	0.9%	611	127	steady	Claude, GitHub Copilot
9	uv	0.6%	5.1%	3,491	185	steady	Claude, ChatGPT
10	Ruff	0.6%	0.8%	5,145	313	steady	Claude, GitHub Copilot
11	Matplotlib	0.6%	0.3%	2,055	165	steady	Claude, Cursor
12	pip	0.5%	1.3%	734	68	steady	Codex, Claude
13	FastAPI	0.3%	0%	1,753	68	surge	Claude, Cursor
14	SQLAlchemy	0%	0%	658	92	steady	–
15	Django	0%	0%	999	216	steady	–
16	Flask	0%	0%	94	6	quiet	–
17	Requests	0%	0%	115	22	steady	Claude

The share of each quarter’s commits that name an AI coding assistant: as their author, as a co-author, or in the line it signs with. A lower bound: an assistant that leaves no mark is not counted. Commits and active authors are those of the last 12 months; health is the project's pace of the last year.

Python: ranked by AI-assisted commits