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. pypa/packaging
15. brettcannon/free-labour
16. brettcannon/travelbrag
17. Which-Film/which-film.info

1. brettcannon/mousebender
2. microsoft/pvscbot
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/pep425
12. brettcannon/check-for-changed-files
13. pypa/packaging.python.org
14. brettcannon/py-pip
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. 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/riscv-harmony
28. brettcannon/find-duplicate-files
29. brettcannon/basicenum
30. uranusjr/packaging-metadata-comparisons
31. angular/angular.js
32. pypa/setuptools
33. python-trio/trio
34. python/core-workflow
35. microsoft/vscode-dev-containers
36. dusty-phillips/rescript-zora
37. Azure-Samples/Azure-MachineLearning-DataScience
38. microsoft/vscode-python-devicesimulator
39. brettcannon/pip-secure-install
40. brettcannon/record-type
41. Azure/msrest-for-python
42. pypa/distutils
43. python-hyper/uritemplate
44. Azure/msrestazure-for-python
45. microsoft/TypeScript-Handbook
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. beeware/toga
4. brettcannon/choose-a-font.dev
5. python/steering-council
6. JuliaLang/julia
7. brettcannon/importlib
8. dusty-phillips/match-variant
9. eclipse-archived/ceylon-lang.org
10. rescript-lang/rescript-lang.org
11. microsoft/vscode-telemetry-extractor
12. microsoft/vscode-anaconda-extension-pack
13. lustre-labs/lustre
14. python/blurb
15. brettcannon/nowhere-on-the-web
16. Azure/azure-sdk-for-python
17. brettcannon/porting-to-python-3-notebook
18. python/cpython-devcontainers
19. python/cherry-picker
20. microsoft/vscode
21. python/planet
22. rust-lang/rust
23. python/typeshed
24. openlawlibrary/pygls
25. micktwomey/pyiso8601
26. square/dagger
27. WebAssembly/design
28. pypa/pipenv
29. Homebrew/homebrew-core
30. cookiecutter/cookiecutter
31. brettcannon/vscode-zephyr-asdl
32. github/gitignore
33. aosabook/500lines
34. Homebrew/legacy-homebrew
35. micropython/micropython
36. badges/shields
37. thechangelog/show-notes
38. dotnet/docs
39. vstinner/misc
40. brettcannon/cpython-wasi-buildbot
41. jazzband/pip-tools
42. inko-lang/inko
43. Mariatta/github-bot-tutorial
44. python/psf-salt
45. microsoft/vscode-wiki
46. MicrosoftDocs/visualstudio-docs
47. python/pyperformance
48. wntrblm/nox
49. python/core-sprint
50. MeeseeksBox/meeseeksbox.github.io
51. moby/mobywebsite
52. conda/ceps
53. aio-libs/aiohttp
54. fastapi/sqlmodel
55. sarugaku/resolvelib
56. python/python-docs-theme
57. bytecodealliance/wasmtime
58. python-hyper/h2
59. beeware/beeware.github.io
60. microsoftarchive/msgraph-sdk-python
61. microsoft/TypeScript-wiki
62. WebAssembly/wasi-sdk
63. gleam-lang/otp
64. microsoft/vscode-docker
65. jaraco/skeleton
66. microsoft/vscode-python-templates
67. pyscript/pyscript
68. python/pythonineducation.org
69. kushaldas/pep582
70. rustwasm/book
71. dabeaz/ply
72. microsoft/vscode-isort
73. larryhastings/appeal
74. astral-sh/ruff
75. huggingface/agents-course
76. MPOS/php-mpos
77. pypa/flit
78. progit/progit2
79. matplotlib/matplotlib
80. python/typing
81. vibora-io/vibora
82. bloodyowl/rescript-test
83. microsoft/sql-server-samples
84. conda/conda
85. microsoft/language-server-protocol
86. asyncio-docs/asyncio-doc
87. buildout/buildout
88. ponylang/pony-tutorial
89. beeware/liquid-demo
90. riverscuomo/apps
91. kushaldas/pym
92. gleam-lang/language-tour
93. Django
94. python/importlib_metadata
95. lorenzofox3/zora
96. devcontainers/images
97. microsoft/PTVS
98. pytest-dev/pytest
99. psf/webassembly
100. pyca/pyopenssl
101. pablogsal/cpython_leaderboard
102. victor-o-silva/python-links-from-link-header
103. actions-rs/install
104. pyvideo/old-pyvideo
105. beeware/podium
106. microsoft/debugpy
107. MicrosoftDocs/azure-docs
108. rust-lang/log
109. pypa/trove-classifiers
110. syl20bnr/spacemacs
111. riscv-software-src/riscv-tests
112. lustre-labs/ui
113. stellar/awesome-stellar
114. stellar-deprecated/docs
115. Lukasa/language-restructuredtext
116. gitkraken/vscode-gitlens
117. modelcontextprotocol/rust-sdk
118. pdm-project/pdm
119. hynek/build-and-inspect-python-package
120. pypa/pipx
121. oauthlib/oauthlib
122. markshannon/faster-cpython
123. conda/conda-docs
124. psf/black
125. regebro/supporting-python-3
126. psf/fundable-packaging-improvements
127. microsoft/vscode-extension-samples
128. clearlydefined/website
129. diogonfs/pyinit
130. vscode-restructuredtext/vscode-restructuredtext
131. bitbldr/sprocket_docs
132. PyCQA/pyflakes
133. MagicStack/MagicPython
134. mesonbuild/meson
135. livebook-dev/livebook
136. jupyterlab/jupyterlab
137. pypa/setuptools-scm
138. bagder/http2-explained
139. getsentry/responses
140. ansible/ansible
141. microsoftgraph/python-sample-pagination
142. Enderchief/gleam-tools
143. brettcannon/exercism-solutions
144. riverscuomo/new-albums
145. lpil/sqlight
146. scikit-learn/scikit-learn
147. Azure/azure-functions-python-library
148. pypa/build
149. GraphQLGuide/book
150. rocketreach/rocketreach_python
151. VSCodeVim/Vim
152. pyvideo/data
153. absurdia/absurdia-py
154. ebkalderon/tower-lsp
155. brettcannon/character-frequency
156. chhantyal/py3readiness
157. casey/just
158. stellar/new-docs
159. zwaldowski/match-label-action
160. gleam-lang/website
161. golang/go
162. Azure/azure-cosmos-python
163. python/mypy
164. pypi/warehouse
165. gleam-lang/erlang
166. mozilla-services/konfig
167. aurelia/documentation
168. devcontainers/features
169. beeware/briefcase
170. dotnet/aspire
171. jupyter/jupyter.github.io
172. conda/conda-build
173. gleam-lang/gleam
174. sphinx-doc/sphinx
175. astral-sh/uv
176. bungcip/better-toml
177. jupyter/notebook
178. reubeno/brush
179. nayafia/nayafia
180. microsoft/python-sample-vscode-django-tutorial
181. jupyter-book/mystmd.org
182. Homebrew/brew
183. facebook/pyre-check
184. palantir/python-language-server
185. okken/pytest-srcpaths
186. Devid-Ba/Text-adventure
187. score-spec/spec
188. spotify/pedalboard
189. vega/ipyvega
190. python/pythontestdotnet
191. starship/starship
192. kushaldas/asaman
193. realpython/python-guide
194. cardoe/stderrlog-rs
195. cometkim/rescript-vitest
196. w3c/ServiceWorker
197. google/yapf
198. luabud/hello-vscodespaces
199. adafruit/Adafruit_CircuitPython_CircuitPlayground
200. python-poetry/tomlkit
201. dusty-phillips/macabre
202. microsoftgraph/microsoft-graph-docs-contrib
203. microsoft/vscode-tools-for-ai
204. rust-lang/rustfmt
205. pycascades/welcome-wagon-2018
206. 11ty/11ty-website
207. Azure/azure-cli
208. Fyrd/caniuse
209. topazproject/topaz
210. WebAssembly/component-model
211. Quansight-Labs/free-threaded-compatibility
212. microsoft/az-partner-center-cli
213. briandealwis/ferret
214. ericpalakovichcarr/pytest-pythonpath
215. extism/extism
216. saschpe/mozilla-plugins
217. microsoft/vscode-pylint
218. google/grumpy
219. twisted/klein
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 (20)
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. Pradyun Gedam (9)
22. Yury Selivanov (8)
23. Larry Hastings (8)
24. Christian Heimes (8)
25. Ivan Levkivskyi (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)
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53. Irit Katriel (5)
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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. 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. Cory Benfield (2)
130. Marcel Plch (2)
131. Mario Corchero (2)
132. Geoffrey Thomas (2)
133. Maggie Moss (2)
134. Stéphane Bidoul (2)
135. Mark Mendoza (2)
136. Shannon Zhu (2)
137. Paul Ganssle (2)
138. Daniel F Moisset (2)
139. Tobias Kohn (2)
140. David Foster (2)
141. Tal Einat (2)
142. Adam Turner (2)
143. Steven Troxler (2)
144. Stan Ulbrych (2)
145. Erik De Bonte (2)
146. Sam Gross (2)
147. Jaime Rodríguez-Guerra (2)
148. Savannah Ostrowski (2)
149. Michael Sarahan (2)
150. Hood Chatham (2)
151. Daniel Stutzbach (2)
152. Joe Carey (2)
153. Martijn Faassen (1)
154. The Python core team and community (1)
155. Paul Barrett (1)
156. Peter Schneider-Kamp (1)
157. Huaiyu Zhu (1)
158. Gregory Lielens (1)
159. Paul F. Dubois (1)
160. Sean Reifschneider (1)
161. Grant Griffin (1)
162. Jonathan Riehl (1)
163. Jason Petrone (1)
164. Frédéric B. Giacometti (1)
165. James C. Ahlstrom (1)
166. Jim Althoff (1)
167. Neil Hodgson (1)
168. Trent Mick (1)
169. David Eppstein (1)
170. Walter Dörwald (1)
171. Oren Tirosh (1)
172. Stepan Koltsov (1)
173. Scott Gilbert (1)
174. Thomas Heller (1)
175. Jeff Epler (1)
176. Just van Rossum (1)
177. Thomas Bellman (1)
178. Kevin Altis (1)
179. Dave Cole (1)
180. Andrew McNamara (1)
181. Cliff Wells (1)
182. Jack Diederich (1)
183. Peter Harris (1)
184. Roman Suzi (1)
185. Mike Meyer (1)
186. W Isaac Carroll (1)
187. Terence Way (1)
188. Steven Taschuk (1)
189. Kevin D. Smith (1)
190. Peter Astrand (1)
191. Samuele Pedroni (1)
192. Christian R. Reis (1)
193. Andrew McClelland (1)
194. Michael P. Dubner (1)
195. Micah Elliott (1)
196. Björn Lindqvist (1)
197. Jiwon Seo (1)
198. Ben North (1)
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