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

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