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/dotfiles
14. brettcannon/free-labour
15. brettcannon/travelbrag
16. pypa/packaging
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/microvenv
10. brettcannon/trips-history
11. brettcannon/python-azure-web-app-cookiecutter
12. brettcannon/pep425
13. brettcannon/py-pip
14. brettcannon/check-for-changed-files
15. pypa/packaging.python.org
16. brettcannon/cpython-wasi-build
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. elixir-lang/elixir-lang.github.com
26. brettcannon/riscv-harmony
27. brettcannon/find-duplicate-files
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. Azure-Samples/Azure-MachineLearning-DataScience
38. microsoft/vscode-python-devicesimulator
39. brettcannon/record-type
40. brettcannon/pip-secure-install
41. Azure/msrest-for-python
42. python-hyper/uritemplate
43. emmatyping/python-wasm
44. microsoft/TypeScript-Handbook
45. pypa/distutils
46. Azure/msrestazure-for-python
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. brettcannon/importlib
4. brettcannon/choose-a-font.dev
5. beeware/toga
6. python/steering-council
7. dusty-phillips/match-variant
8. JuliaLang/julia
9. microsoft/vscode-anaconda-extension-pack
10. microsoft/vscode-telemetry-extractor
11. rescript-lang/rescript-lang.org
12. lustre-labs/lustre
13. eclipse-archived/ceylon-lang.org
14. Azure/azure-sdk-for-python
15. python/blurb
16. brettcannon/nowhere-on-the-web
17. rust-lang/rust
18. brettcannon/porting-to-python-3-notebook
19. python/cherry-picker
20. python/planet
21. openlawlibrary/pygls
22. microsoft/vscode
23. micktwomey/pyiso8601
24. python/typeshed
25. Homebrew/legacy-homebrew
26. Homebrew/homebrew-core
27. square/dagger
28. WebAssembly/design
29. brettcannon/vscode-zephyr-asdl
30. cookiecutter/cookiecutter
31. pypa/pipenv
32. github/gitignore
33. aosabook/500lines
34. dotnet/docs
35. jazzband/pip-tools
36. python/cpython-devcontainers
37. inko-lang/inko
38. thechangelog/show-notes
39. Mariatta/github-bot-tutorial
40. vstinner/misc
41. python/psf-salt
42. badges/shields
43. brettcannon/cpython-wasi-buildbot
44. microsoft/vscode-wiki
45. micropython/micropython
46. microsoft/vscode-isort
47. moby/mobywebsite
48. MeeseeksBox/meeseeksbox.github.io
49. conda/conda
50. kushaldas/pym
51. python/typing
52. microsoft/sql-server-samples
53. aio-libs/aiohttp
54. microsoft/TypeScript-wiki
55. buildout/buildout
56. bloodyowl/rescript-test
57. microsoft/language-server-protocol
58. microsoft/vscode-docker
59. jaraco/skeleton
60. ponylang/pony-tutorial
61. astral-sh/ruff
62. python/pythonineducation.org
63. wntrblm/nox
64. gleam-lang/otp
65. sarugaku/resolvelib
66. progit/progit2
67. microsoftarchive/msgraph-sdk-python
68. MPOS/php-mpos
69. riverscuomo/apps
70. beeware/beeware.github.io
71. gleam-lang/language-tour
72. beeware/liquid-demo
73. pypa/flit
74. python-hyper/h2
75. conda/ceps
76. pyscript/pyscript
77. huggingface/agents-course
78. fastapi/sqlmodel
79. python/core-sprint
80. rustwasm/book
81. asyncio-docs/asyncio-doc
82. MicrosoftDocs/visualstudio-docs
83. larryhastings/appeal
84. kushaldas/pep582
85. dabeaz/ply
86. python/python-docs-theme
87. python/pyperformance
88. matplotlib/matplotlib
89. microsoft/vscode-python-templates
90. vibora-io/vibora
91. WebAssembly/wasi-sdk
92. bytecodealliance/wasmtime
93. Django
94. palantir/python-language-server
95. python/pythontestdotnet
96. beeware/podium
97. stellar/new-docs
98. pdm-project/pdm
99. gleam-lang/gleam
100. adafruit/Adafruit_CircuitPython_CircuitPlayground
101. twisted/klein
102. stellar/awesome-stellar
103. psf/webassembly
104. conda/conda-build
105. Quansight-Labs/free-threaded-compatibility
106. pypa/build
107. Azure/azure-cosmos-python
108. jupyterlab/jupyterlab
109. ansible/ansible
110. pytest-dev/pytest
111. devcontainers/features
112. score-spec/spec
113. sphinx-doc/sphinx
114. microsoft/debugpy
115. VSCodeVim/Vim
116. extism/extism
117. microsoft/vscode-extension-samples
118. microsoft/vscode-pylint
119. Azure/azure-functions-python-library
120. google/yapf
121. stellar-deprecated/docs
122. cardoe/stderrlog-rs
123. riverscuomo/new-albums
124. pyvideo/old-pyvideo
125. microsoft/vscode-tools-for-ai
126. briandealwis/ferret
127. spotify/pedalboard
128. mesonbuild/meson
129. nayafia/nayafia
130. microsoftgraph/microsoft-graph-docs-contrib
131. pyvideo/data
132. ebkalderon/tower-lsp
133. WebAssembly/component-model
134. gleam-lang/website
135. microsoftgraph/python-sample-pagination
136. w3c/ServiceWorker
137. hynek/build-and-inspect-python-package
138. syl20bnr/spacemacs
139. microsoft/PTVS
140. python/mypy
141. aurelia/documentation
142. topazproject/topaz
143. pypi/warehouse
144. mozilla-services/konfig
145. lustre-labs/ui
146. astral-sh/uv
147. okken/pytest-srcpaths
148. realpython/python-guide
149. PyCQA/pyflakes
150. victor-o-silva/python-links-from-link-header
151. chhantyal/py3readiness
152. absurdia/absurdia-py
153. dusty-phillips/macabre
154. rocketreach/rocketreach_python
155. markshannon/faster-cpython
156. microsoft/python-sample-vscode-django-tutorial
157. Azure/azure-cli
158. luabud/hello-vscodespaces
159. rust-lang/rustfmt
160. saschpe/mozilla-plugins
161. beeware/briefcase
162. Devid-Ba/Text-adventure
163. ericpalakovichcarr/pytest-pythonpath
164. facebook/pyre-check
165. MicrosoftDocs/azure-docs
166. lpil/sqlight
167. regebro/supporting-python-3
168. oauthlib/oauthlib
169. jupyter/notebook
170. livebook-dev/livebook
171. actions-rs/install
172. bitbldr/sprocket_docs
173. psf/fundable-packaging-improvements
174. cometkim/rescript-vitest
175. reubeno/brush
176. 11ty/11ty-website
177. jupyter/jupyter.github.io
178. gleam-lang/erlang
179. Lukasa/language-restructuredtext
180. getsentry/responses
181. pycascades/welcome-wagon-2018
182. golang/go
183. pypa/pipx
184. pypa/setuptools-scm
185. casey/just
186. riscv-software-src/riscv-tests
187. brettcannon/exercism-solutions
188. GraphQLGuide/book
189. bungcip/better-toml
190. Fyrd/caniuse
191. devcontainers/images
192. vscode-restructuredtext/vscode-restructuredtext
193. bagder/http2-explained
194. microsoft/az-partner-center-cli
195. psf/black
196. kushaldas/asaman
197. python-poetry/tomlkit
198. MagicStack/MagicPython
199. pypa/trove-classifiers
200. python/importlib_metadata
201. google/grumpy
202. jupyter-book/mystmd.org
203. diogonfs/pyinit
204. gitkraken/vscode-gitlens
205. vega/ipyvega
206. pyca/pyopenssl
207. Enderchief/gleam-tools
208. rust-lang/log
209. lorenzofox3/zora
210. zwaldowski/match-label-action
211. starship/starship
212. scikit-learn/scikit-learn
213. clearlydefined/website
214. brettcannon/character-frequency
215. conda/conda-docs
216. modelcontextprotocol/rust-sdk
217. Homebrew/brew
218. pablogsal/cpython_leaderboard
219. PyPy
220. defusedexpat
221. expat
222. Mercurial
223. vim
224. 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. 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)
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200. Greg Slodkowicz (1)
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