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