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. brettcannon/WWBD
8. python/devinabox
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. dabeaz/curio
21. microsoft/vscode-docs
22. brettcannon/sans-io
23. brettcannon/modutil
24. brettcannon/time-clock
25. brettcannon/find-duplicate-files
26. elixir-lang/elixir-lang.github.com
27. brettcannon/riscv-harmony
28. brettcannon/flatten_filenames
29. brettcannon/basicenum
30. uranusjr/packaging-metadata-comparisons
31. angular/angular.js
32. pypa/setuptools
33. python-trio/trio
34. dusty-phillips/rescript-zora
35. python/core-workflow
36. microsoft/vscode-dev-containers
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. Azure/msrestazure-for-python
44. python-hyper/uritemplate
45. emmatyping/python-wasm
46. microsoft/TypeScript-Handbook
47. brettcannon/defy-layout-scorer
48. python/buildmaster-config
49. orsenthil/cpython-hg-to-git
50. python-hglib

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