1. python/cpython

1. python/peps
2. microsoft/vscode-python
3. brettcannon/python-launcher
4. microsoft/vscode-jupyter
5. brettcannon/caniusepython3
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/free-labour
14. pypa/packaging
15. brettcannon/dotfiles
16. brettcannon/travelbrag
17. Which-Film/which-film.info

1. microsoft/pvscbot
2. brettcannon/mousebender
3. python/importlib_resources
4. PyCQA/modernize
5. brettcannon/release-often
6. python/bedevere
7. python/devinabox
8. brettcannon/WWBD
9. brettcannon/trips-history
10. brettcannon/pep425
11. brettcannon/microvenv
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/time-clock
25. brettcannon/riscv-harmony
26. brettcannon/find-duplicate-files
27. brettcannon/flatten_filenames
28. elixir-lang/elixir-lang.github.com
29. brettcannon/basicenum
30. uranusjr/packaging-metadata-comparisons
31. angular/angular.js
32. pypa/setuptools
33. python-trio/trio
34. python/core-workflow
35. dusty-phillips/rescript-zora
36. microsoft/vscode-dev-containers
37. microsoft/vscode-python-devicesimulator
38. Azure-Samples/Azure-MachineLearning-DataScience
39. Azure/msrest-for-python
40. brettcannon/pip-secure-install
41. brettcannon/record-type
42. pypa/distutils
43. Azure/msrestazure-for-python
44. python-hyper/uritemplate
45. microsoft/TypeScript-Handbook
46. emmatyping/python-wasm
47. brettcannon/defy-layout-scorer
48. orsenthil/cpython-hg-to-git
49. python/buildmaster-config
50. python-hglib

1. benjaminp/six
2. python3statement/python3statement.github.io
3. JuliaLang/julia
4. python/steering-council
5. brettcannon/importlib
6. dusty-phillips/match-variant
7. brettcannon/choose-a-font.dev
8. eclipse-archived/ceylon-lang.org
9. brettcannon/nowhere-on-the-web
10. rescript-lang/rescript-lang.org
11. lustre-labs/lustre
12. microsoft/vscode-telemetry-extractor
13. beeware/toga
14. microsoft/vscode-anaconda-extension-pack
15. python/blurb
16. python/cherry-picker
17. Azure/azure-sdk-for-python
18. brettcannon/porting-to-python-3-notebook
19. microsoft/vscode
20. python/planet
21. rust-lang/rust
22. openlawlibrary/pygls
23. python/typeshed
24. micktwomey/pyiso8601
25. github/gitignore
26. Homebrew/legacy-homebrew
27. square/dagger
28. cookiecutter/cookiecutter
29. brettcannon/vscode-zephyr-asdl
30. WebAssembly/design
31. aosabook/500lines
32. Homebrew/homebrew-core
33. pypa/pipenv
34. thechangelog/show-notes
35. vstinner/misc
36. python/psf-salt
37. micropython/micropython
38. badges/shields
39. brettcannon/cpython-wasi-buildbot
40. inko-lang/inko
41. microsoft/vscode-wiki
42. Mariatta/github-bot-tutorial
43. dotnet/docs
44. jazzband/pip-tools
45. python/cpython-devcontainers
46. MicrosoftDocs/visualstudio-docs
47. MeeseeksBox/meeseeksbox.github.io
48. kushaldas/pym
49. sarugaku/resolvelib
50. microsoft/vscode-isort
51. microsoft/language-server-protocol
52. jaraco/skeleton
53. dabeaz/ply
54. astral-sh/ruff
55. matplotlib/matplotlib
56. python/typing
57. pypa/flit
58. rustwasm/book
59. beeware/liquid-demo
60. microsoft/vscode-python-templates
61. WebAssembly/wasi-sdk
62. microsoft/sql-server-samples
63. conda/ceps
64. huggingface/agents-course
65. progit/progit2
66. python-hyper/h2
67. pyscript/pyscript
68. fastapi/sqlmodel
69. gleam-lang/language-tour
70. larryhastings/appeal
71. bloodyowl/rescript-test
72. asyncio-docs/asyncio-doc
73. microsoft/TypeScript-wiki
74. ponylang/pony-tutorial
75. moby/mobywebsite
76. kushaldas/pep582
77. python/core-sprint
78. python/pythonineducation.org
79. MPOS/php-mpos
80. beeware/beeware.github.io
81. vibora-io/vibora
82. conda/conda
83. microsoftarchive/msgraph-sdk-python
84. buildout/buildout
85. microsoft/vscode-docker
86. aio-libs/aiohttp
87. python/python-docs-theme
88. riverscuomo/apps
89. gleam-lang/otp
90. python/pyperformance
91. wntrblm/nox
92. bytecodealliance/wasmtime
93. Django
94. saschpe/mozilla-plugins
95. w3c/ServiceWorker
96. google/grumpy
97. regebro/supporting-python-3
98. microsoft/vscode-extension-samples
99. getsentry/responses
100. Azure/azure-functions-python-library
101. absurdia/absurdia-py
102. bitbldr/sprocket_docs
103. pyvideo/old-pyvideo
104. pytest-dev/pytest
105. Lukasa/language-restructuredtext
106. Enderchief/gleam-tools
107. rocketreach/rocketreach_python
108. bagder/http2-explained
109. extism/extism
110. pypi/warehouse
111. WebAssembly/component-model
112. rust-lang/log
113. twisted/klein
114. markshannon/faster-cpython
115. casey/just
116. luabud/hello-vscodespaces
117. starship/starship
118. victor-o-silva/python-links-from-link-header
119. python/mypy
120. gleam-lang/website
121. microsoft/vscode-tools-for-ai
122. Azure/azure-cosmos-python
123. cardoe/stderrlog-rs
124. microsoft/PTVS
125. psf/black
126. devcontainers/features
127. psf/webassembly
128. microsoft/vscode-pylint
129. spotify/pedalboard
130. golang/go
131. microsoftgraph/microsoft-graph-docs-contrib
132. topazproject/topaz
133. jupyter/notebook
134. conda/conda-build
135. Homebrew/brew
136. kushaldas/asaman
137. stellar-deprecated/docs
138. 11ty/11ty-website
139. python/pythontestdotnet
140. syl20bnr/spacemacs
141. gleam-lang/gleam
142. Azure/azure-cli
143. pdm-project/pdm
144. zwaldowski/match-label-action
145. facebook/pyre-check
146. vscode-restructuredtext/vscode-restructuredtext
147. pyca/pyopenssl
148. microsoft/debugpy
149. python-poetry/tomlkit
150. python/importlib_metadata
151. gitkraken/vscode-gitlens
152. briandealwis/ferret
153. diogonfs/pyinit
154. conda/conda-docs
155. rust-lang/rustfmt
156. microsoft/az-partner-center-cli
157. actions-rs/install
158. lustre-labs/ui
159. devcontainers/images
160. GraphQLGuide/book
161. chhantyal/py3readiness
162. brettcannon/character-frequency
163. score-spec/spec
164. Devid-Ba/Text-adventure
165. pyvideo/data
166. astral-sh/uv
167. pycascades/welcome-wagon-2018
168. Fyrd/caniuse
169. psf/fundable-packaging-improvements
170. microsoftgraph/python-sample-pagination
171. pypa/pipx
172. riscv-software-src/riscv-tests
173. vega/ipyvega
174. beeware/briefcase
175. cometkim/rescript-vitest
176. ebkalderon/tower-lsp
177. jupyter-book/mystmd.org
178. PyCQA/pyflakes
179. stellar/new-docs
180. stellar/awesome-stellar
181. aurelia/documentation
182. nayafia/nayafia
183. jupyterlab/jupyterlab
184. reubeno/brush
185. MicrosoftDocs/azure-docs
186. mozilla-services/konfig
187. hynek/build-and-inspect-python-package
188. jupyter/jupyter.github.io
189. bungcip/better-toml
190. riverscuomo/new-albums
191. realpython/python-guide
192. pypa/trove-classifiers
193. palantir/python-language-server
194. pypa/build
195. adafruit/Adafruit_CircuitPython_CircuitPlayground
196. ericpalakovichcarr/pytest-pythonpath
197. oauthlib/oauthlib
198. MagicStack/MagicPython
199. VSCodeVim/Vim
200. lorenzofox3/zora
201. gleam-lang/erlang
202. google/yapf
203. scikit-learn/scikit-learn
204. pypa/setuptools-scm
205. Quansight-Labs/free-threaded-compatibility
206. okken/pytest-srcpaths
207. beeware/podium
208. livebook-dev/livebook
209. sphinx-doc/sphinx
210. dusty-phillips/macabre
211. clearlydefined/website
212. pablogsal/cpython_leaderboard
213. microsoft/python-sample-vscode-django-tutorial
214. lpil/sqlight
215. ansible/ansible
216. mesonbuild/meson
217. PyPy
218. defusedexpat
219. expat
220. Mercurial
221. vim
222. 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. Jeremy Hylton (7)
27. Thomas Wouters (7)
28. Moshe Zadka (7)
29. Benjamin Peterson (7)
30. Dustin Ingram (7)
31. William Woodruff (7)
32. Ee Durbin (7)
33. David Goodger (6)
34. Ka-Ping Yee (6)
35. Jim J. Jewett (6)
36. Phillip J. Eby (6)
37. Daniel Holth (6)
38. Chris Angelico (6)
39. Inada Naoki (6)
40. Pablo Galindo (6)
41. Brandt Bucher (6)
42. Pablo Galindo Salgado (6)
43. Tzu-ping Chung (6)
44. Jelle Zijlstra (6)
45. Collin Winter (6)
46. Anthony Baxter (5)
47. Neil Schemenauer (5)
48. Skip Montanaro (5)
49. Ethan Furman (5)
50. Talin (5)
51. Eric Traut (5)
52. Irit Katriel (5)
53. Paul Prescod (4)
54. Gregory Ewing (4)
55. Richard Jones (4)
56. Tarek Ziadé (4)
57. Carl Meyer (4)
58. Jukka Lehtosalo (4)
59. Thomas Kluyver (4)
60. Emma Harper Smith (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. Steven Troxler (2)
142. Erik De Bonte (2)
143. Sam Gross (2)
144. Ralf Gommers (2)
145. Savannah Ostrowski (2)
146. Hood Chatham (2)
147. Daniel Stutzbach (2)
148. Joe Carey (2)
149. Martijn Faassen (1)
150. The Python core team and community (1)
151. Paul Barrett (1)
152. Peter Schneider-Kamp (1)
153. Huaiyu Zhu (1)
154. Gregory Lielens (1)
155. Paul F. Dubois (1)
156. Sean Reifschneider (1)
157. Grant Griffin (1)
158. Jonathan Riehl (1)
159. Jason Petrone (1)
160. Frédéric B. Giacometti (1)
161. James C. Ahlstrom (1)
162. Jim Althoff (1)
163. Neil Hodgson (1)
164. Trent Mick (1)
165. David Eppstein (1)
166. Walter Dörwald (1)
167. Oren Tirosh (1)
168. Stepan Koltsov (1)
169. Scott Gilbert (1)
170. Thomas Heller (1)
171. Jeff Epler (1)
172. Just van Rossum (1)
173. Thomas Bellman (1)
174. Kevin Altis (1)
175. Dave Cole (1)
176. Andrew McNamara (1)
177. Cliff Wells (1)
178. Jack Diederich (1)
179. Peter Harris (1)
180. Roman Suzi (1)
181. Mike Meyer (1)
182. W Isaac Carroll (1)
183. Terence Way (1)
184. Steven Taschuk (1)
185. Kevin D. Smith (1)
186. Peter Astrand (1)
187. Samuele Pedroni (1)
188. Christian R. Reis (1)
189. Andrew McClelland (1)
190. Michael P. Dubner (1)
191. Micah Elliott (1)
192. Björn Lindqvist (1)
193. Jiwon Seo (1)
194. Ben North (1)
195. Lino Mastrodomenico (1)
196. Richard Oudkerk (1)
197. Alexandre Vassalotti (1)
198. Jervis Whitley (1)
199. Kerrick Staley (1)
200. Greg Slodkowicz (1)
201. Michael Foord (1)
202. Paul Colomiets (1)
203. Daniel Urban (1)
204. Benoit Bryon (1)
205. Lennart Regebro (1)
206. Todd Rovito (1)
207. Stefan Krah (1)
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