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. 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/microvenv
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. 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/record-type
41. brettcannon/pip-secure-install
42. python-hyper/uritemplate
43. emmatyping/python-wasm
44. pypa/distutils
45. Azure/msrestazure-for-python
46. microsoft/TypeScript-Handbook
47. python/buildmaster-config
48. brettcannon/defy-layout-scorer
49. orsenthil/cpython-hg-to-git
50. python-hglib

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