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. brettcannon/travelbrag
17. Which-Film/which-film.info

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

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

(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 (19)
8. Martin von Löwis (17)
9. Łukasz Langa (15)
10. Nathaniel J. Smith (15)
11. Steve Dower (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. Yury Selivanov (8)
22. Larry Hastings (8)
23. Christian Heimes (8)
24. Ivan Levkivskyi (8)
25. Pradyun Gedam (8)
26. Ee Durbin (8)
27. Jeremy Hylton (7)
28. Thomas Wouters (7)
29. Moshe Zadka (7)
30. Benjamin Peterson (7)
31. Dustin Ingram (7)
32. Pablo Galindo (7)
33. Jelle Zijlstra (7)
34. William Woodruff (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. Travis Oliphant (3)
67. Michel Pelletier (3)
68. Alex Martelli (3)
69. Michael Hudson (3)
70. Neal Norwitz (3)
71. Steven Bethard (3)
72. Armin Ronacher (3)
73. Carol Willing (3)
74. Eli Bendersky (3)
75. Eric V. Smith (3)
76. Steven D'Aprano (3)
77. Jeffrey Yasskin (3)
78. Batuhan Taskaya (3)
79. Filipe Laíns (3)
80. Erlend Egeberg Aasland (3)
81. James Hilton-Balfe (3)
82. Zac Hatfield-Dodds (3)
83. Shantanu Jain (3)
84. Sergey B Kirpichev (3)
85. Gregory P. Smith (3)
86. Facundo Tuesca (3)
87. Hugo van Kemenade (3)
88. Ewa Jodlowska (3)
89. Aahz (2)
90. Oleg Broytman (2)
91. Fred L. Drake (2)
92. Jr. (2)
93. David Ascher (2)
94. Greg Wilson (2)
95. Gordon McMillan (2)
96. Christopher A. Craig (2)
97. Clark C. Evans (2)
98. Greg Stein (2)
99. Magnus Lie Hetland (2)
100. Jack Jansen (2)
101. Vinay Sajip (2)
102. Mark Hammond (2)
103. Josiah Carlson (2)
104. Terry Reedy (2)
105. Facundo Batista (2)
106. Ben Finney (2)
107. Calvin Spealman (2)
108. Tim Delaney (2)
109. Jesse Noller (2)
110. Stephen J. Turnbull (2)
111. Dirkjan Ochtman (2)
112. Miro Hrončok (2)
113. Cameron Simpson (2)
114. Alex Gaynor (2)
115. Ronald Oussoren (2)
116. Trishank Karthik Kuppusamy (2)
117. Vladimir Diaz (2)
118. Marina Moore (2)
119. Justin Cappos (2)
120. Stefano Borini (2)
121. Stefan Behnel (2)
122. Ned Deily (2)
123. Alexander Belopolsky (2)
124. Nick Humrich (2)
125. Mark E. Haase (2)
126. Robert Collins (2)
127. Koos Zevenhoven (2)
128. Cory Benfield (2)
129. Marcel Plch (2)
130. Mario Corchero (2)
131. Geoffrey Thomas (2)
132. Maggie Moss (2)
133. Stéphane Bidoul (2)
134. Mark Mendoza (2)
135. Shannon Zhu (2)
136. Paul Ganssle (2)
137. Daniel F Moisset (2)
138. Tobias Kohn (2)
139. David Foster (2)
140. Tal Einat (2)
141. Adam Turner (2)
142. Steven Troxler (2)
143. Erik De Bonte (2)
144. Sam Gross (2)
145. Ralf Gommers (2)
146. Savannah Ostrowski (2)
147. Hood Chatham (2)
148. Daniel Stutzbach (2)
149. Joe Carey (2)
150. Martijn Faassen (1)
151. The Python core team and community (1)
152. Paul Barrett (1)
153. Peter Schneider-Kamp (1)
154. Huaiyu Zhu (1)
155. Gregory Lielens (1)
156. Paul F. Dubois (1)
157. Sean Reifschneider (1)
158. Grant Griffin (1)
159. Jonathan Riehl (1)
160. Jason Petrone (1)
161. Frédéric B. Giacometti (1)
162. James C. Ahlstrom (1)
163. Jim Althoff (1)
164. Neil Hodgson (1)
165. Trent Mick (1)
166. David Eppstein (1)
167. Walter Dörwald (1)
168. Oren Tirosh (1)
169. Stepan Koltsov (1)
170. Scott Gilbert (1)
171. Thomas Heller (1)
172. Jeff Epler (1)
173. Just van Rossum (1)
174. Thomas Bellman (1)
175. Kevin Altis (1)
176. Dave Cole (1)
177. Andrew McNamara (1)
178. Cliff Wells (1)
179. Jack Diederich (1)
180. Peter Harris (1)
181. Roman Suzi (1)
182. Mike Meyer (1)
183. W Isaac Carroll (1)
184. Terence Way (1)
185. Steven Taschuk (1)
186. Kevin D. Smith (1)
187. Peter Astrand (1)
188. Samuele Pedroni (1)
189. Christian R. Reis (1)
190. Andrew McClelland (1)
191. Michael P. Dubner (1)
192. Micah Elliott (1)
193. Björn Lindqvist (1)
194. Jiwon Seo (1)
195. Ben North (1)
196. Lino Mastrodomenico (1)
197. Richard Oudkerk (1)
198. Alexandre Vassalotti (1)
199. Jervis Whitley (1)
200. Kerrick Staley (1)
201. Greg Slodkowicz (1)
202. Michael Foord (1)
203. Paul Colomiets (1)
204. Daniel Urban (1)
205. Benoit Bryon (1)
206. Lennart Regebro (1)
207. Todd Rovito (1)
208. Stefan Krah (1)
209. Holger Krekel (1)
210. Chris McDonough (1)
211. Joshua Landau (1)
212. Lukas Puehringer (1)
213. Joshua Lock (1)
214. Lois Anne DeLong (1)
215. Ben Hoyt (1)
216. Joseph Martinot-Lagarde (1)
217. Sebastian Kreft (1)
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225. Mike G. Miller (1)
226. Robert T. McGibbon (1)
227. Serhiy Storchaka (1)
228. Dino Viehland (1)
229. Ryan Gonzalez (1)
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232. Tomáš Orsava (1)
233. Philipp Angerer (1)
234. Erik M. Bray (1)
235. Masayuki Yamamoto (1)
236. Markus Meskanen (1)
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238. R David Murray (1)
239. Elvis Pranskevichus (1)
240. Eric N. Vander Weele (1)
241. Mark Williams (1)
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257. Philippe Ombredanne (1)
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