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. brettcannon/travelbrag
15. pypa/packaging
16. brettcannon/dotfiles
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/python-azure-web-app-cookiecutter
16. brettcannon/cpython-wasi-build
17. brettcannon/stdlib-stats
18. brettcannon/mnfy
19. microsoft/vscode-docs-archive
20. dabeaz/curio
21. microsoft/vscode-docs
22. brettcannon/sans-io
23. brettcannon/modutil
24. brettcannon/time-clock
25. elixir-lang/elixir-lang.github.com
26. brettcannon/flatten_filenames
27. brettcannon/find-duplicate-files
28. brettcannon/riscv-harmony
29. brettcannon/basicenum
30. uranusjr/packaging-metadata-comparisons
31. angular/angular.js
32. pypa/setuptools
33. python-trio/trio
34. microsoft/vscode-dev-containers
35. dusty-phillips/rescript-zora
36. python/core-workflow
37. microsoft/vscode-python-devicesimulator
38. Azure-Samples/Azure-MachineLearning-DataScience
39. Azure/msrest-for-python
40. brettcannon/record-type
41. brettcannon/pip-secure-install
42. microsoft/TypeScript-Handbook
43. python-hyper/uritemplate
44. Azure/msrestazure-for-python
45. pypa/distutils
46. emmatyping/python-wasm
47. brettcannon/defy-layout-scorer
48. orsenthil/cpython-hg-to-git
49. python/buildmaster-config
50. python-hglib

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

(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 (32)
6. Donald Stufft (21)
7. Petr Viktorin (18)
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. Ee Durbin (7)
32. David Goodger (6)
33. Ka-Ping Yee (6)
34. Jim J. Jewett (6)
35. Phillip J. Eby (6)
36. Daniel Holth (6)
37. Chris Angelico (6)
38. Inada Naoki (6)
39. Pablo Galindo (6)
40. Brandt Bucher (6)
41. Pablo Galindo Salgado (6)
42. Tzu-ping Chung (6)
43. Jelle Zijlstra (6)
44. William Woodruff (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. Gregory P. Smith (3)
85. Hugo van Kemenade (3)
86. Ewa Jodlowska (3)
87. Aahz (2)
88. Oleg Broytman (2)
89. Fred L. Drake (2)
90. Jr. (2)
91. David Ascher (2)
92. Greg Wilson (2)
93. Gordon McMillan (2)
94. Christopher A. Craig (2)
95. Clark C. Evans (2)
96. Greg Stein (2)
97. Magnus Lie Hetland (2)
98. Jack Jansen (2)
99. Vinay Sajip (2)
100. Mark Hammond (2)
101. Josiah Carlson (2)
102. Terry Reedy (2)
103. Facundo Batista (2)
104. Ben Finney (2)
105. Calvin Spealman (2)
106. Tim Delaney (2)
107. Jesse Noller (2)
108. Stephen J. Turnbull (2)
109. Dirkjan Ochtman (2)
110. Miro Hrončok (2)
111. Cameron Simpson (2)
112. Alex Gaynor (2)
113. Ronald Oussoren (2)
114. Trishank Karthik Kuppusamy (2)
115. Vladimir Diaz (2)
116. Marina Moore (2)
117. Justin Cappos (2)
118. Stefano Borini (2)
119. Stefan Behnel (2)
120. Ned Deily (2)
121. Alexander Belopolsky (2)
122. Nick Humrich (2)
123. Mark E. Haase (2)
124. Robert Collins (2)
125. Koos Zevenhoven (2)
126. Cory Benfield (2)
127. Marcel Plch (2)
128. Mario Corchero (2)
129. Geoffrey Thomas (2)
130. Maggie Moss (2)
131. Stéphane Bidoul (2)
132. Mark Mendoza (2)
133. Shannon Zhu (2)
134. Paul Ganssle (2)
135. Daniel F Moisset (2)
136. Tobias Kohn (2)
137. David Foster (2)
138. Tal Einat (2)
139. Steven Troxler (2)
140. Erik De Bonte (2)
141. Sam Gross (2)
142. Ralf Gommers (2)
143. Sergey B Kirpichev (2)
144. Facundo Tuesca (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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209. Chris McDonough (1)
210. Joshua Landau (1)
211. Lukas Puehringer (1)
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280. Alice Purcell (1)
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