1. python/cpython

1. python/peps
2. microsoft/vscode-python
3. brettcannon/python-launcher
4. brettcannon/caniusepython3
5. microsoft/vscode-jupyter
6. python/devguide
7. microsoft/Pyjion
8. gidgethub/gidgethub
9. brettcannon/oplop
10. brettcannon/desugar
11. brettcannon/dotconfig
12. python/the-knights-who-say-ni
13. brettcannon/dotfiles
14. pypa/packaging
15. brettcannon/free-labour
16. amcinnes87/travelbrag
17. Which-Film/which-film.info
18. python/importlib_resources

1. brettcannon/mousebender
2. microsoft/pvscbot
3. PyCQA/modernize
4. brettcannon/release-often
5. pypa/packaging.python.org
6. python/bedevere
7. python/devinabox
8. brettcannon/WWBD
9. brettcannon/trips-history
10. brettcannon/microvenv
11. brettcannon/check-for-changed-files
12. brettcannon/pep425
13. brettcannon/py-pip
14. brettcannon/cpython-wasi-build
15. brettcannon/python-azure-web-app-cookiecutter
16. brettcannon/stdlib-stats
17. brettcannon/mnfy
18. microsoft/vscode-docs-archive
19. dabeaz/curio
20. microsoft/vscode-docs
21. brettcannon/sans-io
22. brettcannon/modutil
23. brettcannon/time-clock
24. brettcannon/flatten_filenames
25. brettcannon/riscv-harmony
26. brettcannon/find-duplicate-files
27. elixir-lang/elixir-lang.github.com
28. brettcannon/basicenum
29. uranusjr/packaging-metadata-comparisons
30. angular/angular.js
31. pypa/setuptools
32. python-trio/trio
33. microsoft/vscode-dev-containers
34. dusty-phillips/rescript-zora
35. python/core-workflow
36. microsoft/vscode-python-devicesimulator
37. Azure-Samples/Azure-MachineLearning-DataScience
38. Azure/msrestazure-for-python
39. brettcannon/record-type
40. Azure/msrest-for-python
41. brettcannon/pip-secure-install
42. pypa/distutils
43. python-hyper/uritemplate
44. microsoft/TypeScript-Handbook
45. emmatyping/python-wasm
46. brettcannon/defy-layout-scorer
47. python/buildmaster-config
48. python/cpython-devcontainers
49. orsenthil/cpython-hg-to-git
50. python-hglib

1. benjaminp/six
2. python3statement/python3statement.github.io
3. brettcannon/choose-a-font.dev
4. dusty-phillips/match-variant
5. brettcannon/importlib
6. beeware/toga
7. python/prebuilt-cpython
8. JuliaLang/julia
9. python/steering-council
10. brettcannon/nowhere-on-the-web
11. microsoft/vscode-anaconda-extension-pack
12. rescript-lang/rescript-lang.org
13. lustre-labs/lustre
14. microsoft/vscode-telemetry-extractor
15. eclipse-archived/ceylon-lang.org
16. python/blurb
17. Azure/azure-sdk-for-python
18. python/cherry-picker
19. brettcannon/porting-to-python-3-notebook
20. python/typeshed
21. rust-lang/rust
22. microsoft/vscode
23. openlawlibrary/pygls
24. micktwomey/pyiso8601
25. python/planet
26. Homebrew/homebrew-core
27. Homebrew/legacy-homebrew
28. WebAssembly/design
29. brettcannon/vscode-zephyr-asdl
30. cookiecutter/cookiecutter
31. square/dagger
32. aosabook/500lines
33. pypa/pipenv
34. github/gitignore
35. inko-lang/inko
36. microsoft/vscode-wiki
37. Mariatta/github-bot-tutorial
38. jazzband/pip-tools
39. badges/shields
40. micropython/micropython
41. thechangelog/show-notes
42. python/psf-salt
43. dotnet/docs
44. vstinner/misc
45. brettcannon/cpython-wasi-buildbot
46. bloodyowl/rescript-test
47. python/pythonineducation.org
48. huggingface/agents-course
49. astral-sh/ruff
50. pyscript/pyscript
51. buildout/buildout
52. gleam-lang/otp
53. MicrosoftDocs/visualstudio-docs
54. dabeaz/ply
55. ponylang/pony-tutorial
56. microsoft/TypeScript-wiki
57. moby/mobywebsite
58. microsoft/language-server-protocol
59. python/python-docs-theme
60. aio-libs/aiohttp
61. matplotlib/matplotlib
62. pypa/flit
63. eerhardt/PythonStarter
64. fastapi/sqlmodel
65. beeware/liquid-demo
66. progit/progit2
67. python/core-sprint
68. microsoft/vscode-python-templates
69. MeeseeksBox/meeseeksbox.github.io
70. microsoft/sql-server-samples
71. bytecodealliance/wasmtime
72. microsoft/vscode-isort
73. microsoftarchive/msgraph-sdk-python
74. python-hyper/h2
75. beeware/beeware.github.io
76. kushaldas/pep582
77. asyncio-docs/asyncio-doc
78. jaraco/skeleton
79. VSCodeVim/Vim
80. sarugaku/resolvelib
81. python/pyperformance
82. vibora-io/vibora
83. microsoft/vscode-docker
84. wntrblm/nox
85. conda/ceps
86. rustwasm/book
87. MPOS/php-mpos
88. larryhastings/appeal
89. kushaldas/pym
90. conda/conda
91. WebAssembly/wasi-sdk
92. python/typing
93. gleam-lang/language-tour
94. gleam-lang/website
95. Django
96. ebkalderon/tower-lsp
97. microsoft/vscode-pylint
98. realpython/python-guide
99. microsoft/debugpy
100. python/importlib_metadata
101. dotnet/aspire
102. brettcannon/exercism-solutions
103. actions-rs/install
104. Azure/azure-functions-python-library
105. python/mypy
106. absurdia/absurdia-py
107. Quansight-Labs/free-threaded-compatibility
108. modelcontextprotocol/rust-sdk
109. pablogsal/cpython_leaderboard
110. luabud/hello-vscodespaces
111. pypi/warehouse
112. MagicStack/MagicPython
113. mesonbuild/meson
114. gitkraken/vscode-gitlens
115. facebook/pyre-check
116. extism/extism
117. brettcannon/character-frequency
118. lpil/sqlight
119. GraphQLGuide/book
120. beeware/podium
121. adafruit/Adafruit_CircuitPython_CircuitPlayground
122. microsoft/vscode-tools-for-ai
123. reubeno/brush
124. hynek/build-and-inspect-python-package
125. oauthlib/oauthlib
126. spotify/pedalboard
127. pypa/pipx
128. 11ty/11ty-website
129. w3c/ServiceWorker
130. kushaldas/asaman
131. Fyrd/caniuse
132. Devid-Ba/Text-adventure
133. vscode-restructuredtext/vscode-restructuredtext
134. bungcip/better-toml
135. twisted/klein
136. aurelia/documentation
137. astral-sh/uv
138. getsentry/responses
139. WebAssembly/component-model
140. pyca/pyopenssl
141. microsoftgraph/microsoft-graph-docs-contrib
142. sphinx-doc/sphinx
143. pypa/setuptools-scm
144. microsoft/PTVS
145. devcontainers/images
146. livebook-dev/livebook
147. topazproject/topaz
148. microsoft/az-partner-center-cli
149. saschpe/mozilla-plugins
150. gleam-lang/erlang
151. palantir/python-language-server
152. golang/go
153. google/grumpy
154. microsoft/python-sample-vscode-django-tutorial
155. markshannon/faster-cpython
156. python/pythontestdotnet
157. stellar-deprecated/docs
158. chhantyal/py3readiness
159. cometkim/rescript-vitest
160. bitbldr/sprocket_docs
161. conda/conda-docs
162. scikit-learn/scikit-learn
163. casey/just
164. jupyter-book/mystmd.org
165. pypa/build
166. pycascades/welcome-wagon-2018
167. Lukasa/language-restructuredtext
168. clearlydefined/website
169. rust-lang/rustfmt
170. riverscuomo/new-albums
171. MicrosoftDocs/azure-docs
172. devcontainers/features
173. pyvideo/old-pyvideo
174. nayafia/nayafia
175. python-poetry/tomlkit
176. starship/starship
177. jupyter/notebook
178. regebro/supporting-python-3
179. jupyterlab/jupyterlab
180. rust-lang/log
181. ansible/ansible
182. stellar/new-docs
183. dusty-phillips/macabre
184. zwaldowski/match-label-action
185. pyvideo/data
186. PyCQA/pyflakes
187. Homebrew/brew
188. riscv-software-src/riscv-tests
189. diogonfs/pyinit
190. microsoftgraph/python-sample-pagination
191. lorenzofox3/zora
192. psf/webassembly
193. okken/pytest-srcpaths
194. lustre-labs/ui
195. pdm-project/pdm
196. conda/conda-build
197. psf/fundable-packaging-improvements
198. pytest-dev/pytest
199. vega/ipyvega
200. gleam-lang/gleam
201. pypa/trove-classifiers
202. mozilla-services/konfig
203. score-spec/spec
204. cardoe/stderrlog-rs
205. google/yapf
206. microsoft/vscode-extension-samples
207. beeware/briefcase
208. psf/black
209. ericpalakovichcarr/pytest-pythonpath
210. Azure/azure-cli
211. stellar/awesome-stellar
212. bagder/http2-explained
213. briandealwis/ferret
214. syl20bnr/spacemacs
215. jupyter/jupyter.github.io
216. victor-o-silva/python-links-from-link-header
217. Azure/azure-cosmos-python
218. rocketreach/rocketreach_python
219. Enderchief/gleam-tools
220. PyPy
221. defusedexpat
222. expat
223. Mercurial
224. vim
225. smol
226. world

(Listed from oldest to newest, although I may have become a co-author post-creation.)

1. Alyssa Coghlan (53)
2. Guido van Rossum (49)
3. Barry Warsaw (41)
4. Victor Stinner (34)
5. Brett Cannon (33)
6. Donald Stufft (21)
7. Petr Viktorin (20)
8. Martin von Löwis (17)
9. Steve Dower (16)
10. Łukasz Langa (15)
11. Nathaniel J. Smith (15)
12. Raymond Hettinger (14)
13. Antoine Pitrou (13)
14. Mark Shannon (12)
15. Eric Snow (12)
16. Georg Brandl (11)
17. Tim Peters (10)
18. A.M. Kuchling (10)
19. Marc-André Lemburg (9)
20. Paul Moore (9)
21. Pradyun Gedam (9)
22. Ee Durbin (9)
23. Thomas Wouters (8)
24. Yury Selivanov (8)
25. Larry Hastings (8)
26. Christian Heimes (8)
27. Ivan Levkivskyi (8)
28. Pablo Galindo (8)
29. William Woodruff (8)
30. Jeremy Hylton (7)
31. Moshe Zadka (7)
32. Benjamin Peterson (7)
33. Dustin Ingram (7)
34. Jelle Zijlstra (7)
35. David Goodger (6)
36. Ka-Ping Yee (6)
37. Jim J. Jewett (6)
38. Phillip J. Eby (6)
39. Daniel Holth (6)
40. Chris Angelico (6)
41. Inada Naoki (6)
42. Brandt Bucher (6)
43. Pablo Galindo Salgado (6)
44. Tzu-ping Chung (6)
45. Collin Winter (6)
46. Anthony Baxter (5)
47. Neil Schemenauer (5)
48. Skip Montanaro (5)
49. Ethan Furman (5)
50. Emma Harper Smith (5)
51. Talin (5)
52. Eric Traut (5)
53. Irit Katriel (5)
54. Paul Prescod (4)
55. Gregory Ewing (4)
56. Richard Jones (4)
57. Tarek Ziadé (4)
58. Carl Meyer (4)
59. Jukka Lehtosalo (4)
60. Thomas Kluyver (4)
61. Jeroen Demeyer (4)
62. Mariatta (4)
63. Lysandros Nikolaou (4)
64. Ofek Lev (4)
65. Pradeep Kumar Srinivasan (4)
66. Zac Hatfield-Dodds (4)
67. Travis Oliphant (3)
68. Michel Pelletier (3)
69. Alex Martelli (3)
70. Michael Hudson (3)
71. Neal Norwitz (3)
72. Steven Bethard (3)
73. Armin Ronacher (3)
74. Carol Willing (3)
75. Eli Bendersky (3)
76. Eric V. Smith (3)
77. Steven D'Aprano (3)
78. Jeffrey Yasskin (3)
79. Batuhan Taskaya (3)
80. Filipe Laíns (3)
81. Erlend Egeberg Aasland (3)
82. James Hilton-Balfe (3)
83. Shantanu Jain (3)
84. Ralf Gommers (3)
85. Sergey B Kirpichev (3)
86. Gregory P. Smith (3)
87. Facundo Tuesca (3)
88. Hugo van Kemenade (3)
89. Ewa Jodlowska (3)
90. Aahz (2)
91. Oleg Broytman (2)
92. Fred L. Drake (2)
93. Jr. (2)
94. David Ascher (2)
95. Greg Wilson (2)
96. Gordon McMillan (2)
97. Christopher A. Craig (2)
98. Clark C. Evans (2)
99. Greg Stein (2)
100. Magnus Lie Hetland (2)
101. Jack Jansen (2)
102. Vinay Sajip (2)
103. Mark Hammond (2)
104. Josiah Carlson (2)
105. Terry Reedy (2)
106. Facundo Batista (2)
107. Ben Finney (2)
108. Calvin Spealman (2)
109. Tim Delaney (2)
110. Jesse Noller (2)
111. Stephen J. Turnbull (2)
112. Dirkjan Ochtman (2)
113. Miro Hrončok (2)
114. Cameron Simpson (2)
115. Alex Gaynor (2)
116. Ronald Oussoren (2)
117. Trishank Karthik Kuppusamy (2)
118. Vladimir Diaz (2)
119. Marina Moore (2)
120. Justin Cappos (2)
121. Stefano Borini (2)
122. Stefan Behnel (2)
123. Ned Deily (2)
124. Alexander Belopolsky (2)
125. Nick Humrich (2)
126. Mark E. Haase (2)
127. Robert Collins (2)
128. Koos Zevenhoven (2)
129. Dino Viehland (2)
130. Cory Benfield (2)
131. Marcel Plch (2)
132. Mario Corchero (2)
133. Geoffrey Thomas (2)
134. Maggie Moss (2)
135. Stéphane Bidoul (2)
136. Mark Mendoza (2)
137. Shannon Zhu (2)
138. Paul Ganssle (2)
139. Daniel F Moisset (2)
140. Tobias Kohn (2)
141. David Foster (2)
142. Tal Einat (2)
143. Adam Turner (2)
144. Steven Troxler (2)
145. Stan Ulbrych (2)
146. Erik De Bonte (2)
147. Germán Méndez Bravo (2)
148. Sam Gross (2)
149. Jaime Rodríguez-Guerra (2)
150. Savannah Ostrowski (2)
151. Seth Michael Larson (2)
152. Michael Sarahan (2)
153. Hood Chatham (2)
154. Daniel Stutzbach (2)
155. Joe Carey (2)
156. Martijn Faassen (1)
157. The Python core team and community (1)
158. Paul Barrett (1)
159. Peter Schneider-Kamp (1)
160. Huaiyu Zhu (1)
161. Gregory Lielens (1)
162. Paul F. Dubois (1)
163. Sean Reifschneider (1)
164. Grant Griffin (1)
165. Jonathan Riehl (1)
166. Jason Petrone (1)
167. Frédéric B. Giacometti (1)
168. James C. Ahlstrom (1)
169. Jim Althoff (1)
170. Neil Hodgson (1)
171. Trent Mick (1)
172. David Eppstein (1)
173. Walter Dörwald (1)
174. Oren Tirosh (1)
175. Stepan Koltsov (1)
176. Scott Gilbert (1)
177. Thomas Heller (1)
178. Jeff Epler (1)
179. Just van Rossum (1)
180. Thomas Bellman (1)
181. Kevin Altis (1)
182. Dave Cole (1)
183. Andrew McNamara (1)
184. Cliff Wells (1)
185. Jack Diederich (1)
186. Peter Harris (1)
187. Roman Suzi (1)
188. Mike Meyer (1)
189. W Isaac Carroll (1)
190. Terence Way (1)
191. Steven Taschuk (1)
192. Kevin D. Smith (1)
193. Peter Astrand (1)
194. Samuele Pedroni (1)
195. Christian R. Reis (1)
196. Andrew McClelland (1)
197. Michael P. Dubner (1)
198. Micah Elliott (1)
199. Björn Lindqvist (1)
200. Jiwon Seo (1)
201. Ben North (1)
202. Lino Mastrodomenico (1)
203. Richard Oudkerk (1)
204. Alexandre Vassalotti (1)
205. Jervis Whitley (1)
206. Kerrick Staley (1)
207. Greg Slodkowicz (1)
208. Michael Foord (1)
209. Paul Colomiets (1)
210. Daniel Urban (1)
211. Benoit Bryon (1)
212. Lennart Regebro (1)
213. Todd Rovito (1)
214. Stefan Krah (1)
215. Holger Krekel (1)
216. Chris McDonough (1)
217. Joshua Landau (1)
218. Lukas Puehringer (1)
219. Joshua Lock (1)
220. Lois Anne DeLong (1)
221. Ben Hoyt (1)
222. Joseph Martinot-Lagarde (1)
223. Sebastian Kreft (1)
224. Charles-François Natali (1)
225. Christopher Barker (1)
226. Martin Teichmann (1)
227. Robert Kuska (1)
228. James Polley (1)
229. Ed Schofield (1)
230. Joseph Jevnik (1)
231. Mike G. Miller (1)
232. Robert T. McGibbon (1)
233. Serhiy Storchaka (1)
234. Ryan Gonzalez (1)
235. Philip House (1)
236. Lisa Roach (1)
237. Tomáš Orsava (1)
238. Philipp Angerer (1)
239. Erik M. Bray (1)
240. Masayuki Yamamoto (1)
241. Markus Meskanen (1)
242. Julien Palard (1)
243. R David Murray (1)
244. Elvis Pranskevichus (1)
245. Eric N. Vander Weele (1)
246. Mark Williams (1)
247. Kushal Das (1)
248. Michael Lee (1)
249. Michael J. Sullivan (1)
250. Till Varoquaux (1)
251. Konstantin Kashin (1)
252. Ezio Melotti (1)
253. Berker Peksag (1)
254. Damien George (1)
255. Philippe PRADOS (1)
256. Sumana Harihareswara (1)
257. Chris Jerdonek (1)
258. Dennis Sweeney (1)
259. Sébastien Eustace (1)
260. Laurie Opperman (1)
261. Arun Babu Neelicattu (1)
262. Philippe Ombredanne (1)
263. C.A.M. Gerlach (1)
264. Karolina Surma (1)
265. Matthew Rahtz (1)
266. Vincent Siles (1)
267. Vikram Jayanthi (1)
268. Ammar Askar (1)
269. Bernát Gábor (1)
270. Laura Creighton (1)
271. Tian Gao (1)
272. Matthias Klose (1)
273. Stefano Rivera (1)
274. Elana Hashman (1)
275. Graham Bleaney (1)
276. Taneli Hukkinen (1)
277. John Belmonte (1)
278. Eddie Elizondo (1)
279. Cooper Lees (1)
280. Franek Magiera (1)
281. Joshua Xu (1)
282. Ken Jin (1)
283. Marta Gómez Macías (1)
284. Alice Purcell (1)
285. Fridolín Pokorný (1)
286. Joshua Cannon (1)
287. Amethyst Reese (1)
288. Rich Chiodo (1)
289. Sebastián Ramírez (1)
290. Zixuan James Li (1)
291. Russell Keith-Magee (1)
292. Joanna Jablonski (1)
293. Domenico Andreoli (1)
294. Carl Friedrich Bolz-Tereick (1)
295. Simon Cross (1)
296. Tim Felgentreff (1)
297. David Hewitt (1)
298. Wenzel Jakob (1)
299. Marc-Andre Lemburg (1)
300. Donghee Na (1)
301. Karl Nelson (1)
302. Stepan Sindelar (1)
303. David Woods (1)
304. Stephen Rosen (1)
305. Joshua Bambrick (1)
306. Malcolm Smith (1)
307. Adrian Garcia Badaracco (1)
308. Joop van de Pol (1)
309. Jim Baker (1)
310. Paul Everitt (1)
311. Koudai Aono (1)
312. Dave Peck (1)
313. Jarek Potiuk (1)
314. Gregory R. Warnes (1)
315. Emily Morehouse-Valcarcel (1)
316. Alexis Challande (1)
317. Victorien Plot (1)
318. Eneg (1)
319. Matt Wozniski (1)
320. Ivona Stojanovic (1)
321. Seth Larson (1)
322. Thomas Robitaille (1)
323. Jonathan Dekhtiar (1)
324. Deb Nicholson (1)
325. Matt Page (1)
326. Klaus Zimmermann (1)
327. Peter Bierma (1)
328. Adam Hartz (1)
329. Erik Demaine (1)
330. László Kiss Kollár (1)
331. Michał Górny (1)
332. Brittany Reynoso (1)
333. Noah Kim (1)
334. Tim Stumbaugh (1)
335. Tony Lownds (1)
336. Andre Roberge (1)
337. Jason Orendorff (1)
338. Mike Verdone (1)
339. Carl Banks (1)
340. Patrick Maupin (1)
341. Lie Ryan (1)
342. Matt Chisholm (1)
343. Atsuo Ishimoto (1)
344. Gerald Britton (1)
345. Peter Moody (1)
346. Eric Pruitt (1)
347. Charles R. McCreary (1)
348. Reid Kleckner (1)
349. Brian Quinlan (1)
350. Laurens Van Houtven (1)
351. Zachary Ware (1)
352. Doug Hellmann (1)
353. The PEP Editors (1)

• Mercury
• Venus
• Earth
• Mars
• Jupiter
• Saturn
• Uranus
• Neptune