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/travelbrag
14. brettcannon/dotfiles
15. pypa/packaging
16. brettcannon/free-labour
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/microvenv
10. brettcannon/trips-history
11. brettcannon/pep425
12. brettcannon/check-for-changed-files
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. brettcannon/sans-io
21. microsoft/vscode-docs
22. brettcannon/modutil
23. brettcannon/time-clock
24. brettcannon/find-duplicate-files
25. elixir-lang/elixir-lang.github.com
26. brettcannon/riscv-harmony
27. brettcannon/flatten_filenames
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/msrest-for-python
39. brettcannon/pip-secure-install
40. brettcannon/record-type
41. pypa/distutils
42. emmatyping/python-wasm
43. python-hyper/uritemplate
44. microsoft/TypeScript-Handbook
45. Azure/msrestazure-for-python
46. python/buildmaster-config
47. brettcannon/defy-layout-scorer
48. orsenthil/cpython-hg-to-git
49. python-hglib

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

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

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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. Thomas Wouters (8)
23. Yury Selivanov (8)
24. Larry Hastings (8)
25. Christian Heimes (8)
26. Ivan Levkivskyi (8)
27. Pablo Galindo (8)
28. Ee Durbin (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)
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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. Michael Sarahan (2)
152. Hood Chatham (2)
153. Daniel Stutzbach (2)
154. Joe Carey (2)
155. Martijn Faassen (1)
156. The Python core team and community (1)
157. Paul Barrett (1)
158. Peter Schneider-Kamp (1)
159. Huaiyu Zhu (1)
160. Gregory Lielens (1)
161. Paul F. Dubois (1)
162. Sean Reifschneider (1)
163. Grant Griffin (1)
164. Jonathan Riehl (1)
165. Jason Petrone (1)
166. Frédéric B. Giacometti (1)
167. James C. Ahlstrom (1)
168. Jim Althoff (1)
169. Neil Hodgson (1)
170. Trent Mick (1)
171. David Eppstein (1)
172. Walter Dörwald (1)
173. Oren Tirosh (1)
174. Stepan Koltsov (1)
175. Scott Gilbert (1)
176. Thomas Heller (1)
177. Jeff Epler (1)
178. Just van Rossum (1)
179. Thomas Bellman (1)
180. Kevin Altis (1)
181. Dave Cole (1)
182. Andrew McNamara (1)
183. Cliff Wells (1)
184. Jack Diederich (1)
185. Peter Harris (1)
186. Roman Suzi (1)
187. Mike Meyer (1)
188. W Isaac Carroll (1)
189. Terence Way (1)
190. Steven Taschuk (1)
191. Kevin D. Smith (1)
192. Peter Astrand (1)
193. Samuele Pedroni (1)
194. Christian R. Reis (1)
195. Andrew McClelland (1)
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