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. python/devinabox
8. brettcannon/WWBD
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. brettcannon/sans-io
22. microsoft/vscode-docs
23. brettcannon/modutil
24. brettcannon/time-clock
25. brettcannon/find-duplicate-files
26. brettcannon/riscv-harmony
27. elixir-lang/elixir-lang.github.com
28. brettcannon/flatten_filenames
29. uranusjr/packaging-metadata-comparisons
30. brettcannon/basicenum
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. Azure/msrest-for-python
40. brettcannon/record-type
41. brettcannon/pip-secure-install
42. pypa/distutils
43. emmatyping/python-wasm
44. python-hyper/uritemplate
45. Azure/msrestazure-for-python
46. microsoft/TypeScript-Handbook
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. brettcannon/importlib
4. JuliaLang/julia
5. dusty-phillips/match-variant
6. brettcannon/choose-a-font.dev
7. eclipse-archived/ceylon-lang.org
8. python/steering-council
9. microsoft/vscode-anaconda-extension-pack
10. rescript-lang/rescript-lang.org
11. python/blurb
12. brettcannon/nowhere-on-the-web
13. microsoft/vscode-telemetry-extractor
14. beeware/toga
15. lustre-labs/lustre
16. brettcannon/porting-to-python-3-notebook
17. python/cherry-picker
18. Azure/azure-sdk-for-python
19. rust-lang/rust
20. microsoft/vscode
21. micktwomey/pyiso8601
22. openlawlibrary/pygls
23. python/planet
24. python/typeshed
25. pypa/pipenv
26. Homebrew/homebrew-core
27. square/dagger
28. aosabook/500lines
29. brettcannon/vscode-zephyr-asdl
30. WebAssembly/design
31. Homebrew/legacy-homebrew
32. cookiecutter/cookiecutter
33. github/gitignore
34. badges/shields
35. micropython/micropython
36. jazzband/pip-tools
37. microsoft/vscode-wiki
38. brettcannon/cpython-wasi-buildbot
39. inko-lang/inko
40. python/psf-salt
41. Mariatta/github-bot-tutorial
42. thechangelog/show-notes
43. vstinner/misc
44. dotnet/docs
45. MeeseeksBox/meeseeksbox.github.io
46. microsoft/sql-server-samples
47. python/pyperformance
48. conda/ceps
49. huggingface/agents-course
50. python/pythonineducation.org
51. python-hyper/h2
52. microsoft/language-server-protocol
53. microsoftarchive/msgraph-sdk-python
54. MicrosoftDocs/visualstudio-docs
55. python/typing
56. microsoft/TypeScript-wiki
57. microsoft/vscode-python-templates
58. vibora-io/vibora
59. kushaldas/pep582
60. astral-sh/ruff
61. jaraco/skeleton
62. riverscuomo/apps
63. rustwasm/book
64. python/core-sprint
65. kushaldas/pym
66. moby/mobywebsite
67. python/python-docs-theme
68. pypa/flit
69. larryhastings/appeal
70. progit/progit2
71. gleam-lang/language-tour
72. bloodyowl/rescript-test
73. asyncio-docs/asyncio-doc
74. pyscript/pyscript
75. conda/conda
76. MPOS/php-mpos
77. beeware/liquid-demo
78. matplotlib/matplotlib
79. WebAssembly/wasi-sdk
80. ponylang/pony-tutorial
81. buildout/buildout
82. microsoft/vscode-isort
83. bytecodealliance/wasmtime
84. microsoft/vscode-docker
85. fastapi/sqlmodel
86. sarugaku/resolvelib
87. aio-libs/aiohttp
88. dabeaz/ply
89. Django
90. rust-lang/rustfmt
91. jupyter/jupyter.github.io
92. zwaldowski/match-label-action
93. oauthlib/oauthlib
94. casey/just
95. Azure/azure-cli
96. aurelia/documentation
97. Lukasa/language-restructuredtext
98. bagder/http2-explained
99. hynek/build-and-inspect-python-package
100. microsoft/vscode-extension-samples
101. google/yapf
102. palantir/python-language-server
103. MicrosoftDocs/azure-docs
104. dusty-phillips/macabre
105. Enderchief/gleam-tools
106. microsoft/debugpy
107. pypi/warehouse
108. conda/conda-docs
109. Azure/azure-cosmos-python
110. pyca/pyopenssl
111. python/importlib_metadata
112. adafruit/Adafruit_CircuitPython_CircuitPlayground
113. microsoft/az-partner-center-cli
114. pytest-dev/pytest
115. psf/webassembly
116. regebro/supporting-python-3
117. topazproject/topaz
118. saschpe/mozilla-plugins
119. nayafia/nayafia
120. vscode-restructuredtext/vscode-restructuredtext
121. PyCQA/pyflakes
122. pyvideo/data
123. ebkalderon/tower-lsp
124. ansible/ansible
125. devcontainers/features
126. stellar-deprecated/docs
127. score-spec/spec
128. cometkim/rescript-vitest
129. facebook/pyre-check
130. extism/extism
131. devcontainers/images
132. pypa/trove-classifiers
133. gleam-lang/otp
134. spotify/pedalboard
135. sphinx-doc/sphinx
136. realpython/python-guide
137. python/pythontestdotnet
138. mesonbuild/meson
139. livebook-dev/livebook
140. Homebrew/brew
141. python-poetry/tomlkit
142. victor-o-silva/python-links-from-link-header
143. rust-lang/log
144. rocketreach/rocketreach_python
145. pypa/setuptools-scm
146. okken/pytest-srcpaths
147. vega/ipyvega
148. jupyter-book/mystmd.org
149. diogonfs/pyinit
150. pypa/build
151. pycascades/welcome-wagon-2018
152. reubeno/brush
153. clearlydefined/website
154. gleam-lang/website
155. bungcip/better-toml
156. w3c/ServiceWorker
157. conda/conda-build
158. absurdia/absurdia-py
159. twisted/klein
160. microsoft/python-sample-vscode-django-tutorial
161. Quansight-Labs/free-threaded-compatibility
162. pablogsal/cpython_leaderboard
163. MagicStack/MagicPython
164. pyvideo/old-pyvideo
165. lustre-labs/ui
166. brettcannon/character-frequency
167. riscv-software-src/riscv-tests
168. luabud/hello-vscodespaces
169. gitkraken/vscode-gitlens
170. golang/go
171. lorenzofox3/zora
172. python/mypy
173. pdm-project/pdm
174. riverscuomo/new-albums
175. microsoftgraph/microsoft-graph-docs-contrib
176. actions-rs/install
177. Azure/azure-functions-python-library
178. microsoft/vscode-pylint
179. python/cpython-devcontainers
180. scikit-learn/scikit-learn
181. GraphQLGuide/book
182. 11ty/11ty-website
183. ericpalakovichcarr/pytest-pythonpath
184. Fyrd/caniuse
185. VSCodeVim/Vim
186. stellar/awesome-stellar
187. stellar/new-docs
188. jupyter/notebook
189. pypa/pipx
190. markshannon/faster-cpython
191. jupyterlab/jupyterlab
192. syl20bnr/spacemacs
193. starship/starship
194. psf/fundable-packaging-improvements
195. google/grumpy
196. kushaldas/asaman
197. microsoftgraph/python-sample-pagination
198. cardoe/stderrlog-rs
199. microsoft/vscode-tools-for-ai
200. chhantyal/py3readiness
201. getsentry/responses
202. microsoft/PTVS
203. psf/black
204. astral-sh/uv
205. gleam-lang/gleam
206. mozilla-services/konfig
207. bitbldr/sprocket_docs
208. WebAssembly/component-model
209. wntrblm/nox
210. briandealwis/ferret
211. Devid-Ba/Text-adventure
212. PyPy
213. defusedexpat
214. expat
215. Mercurial
216. vim
217. 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 (32)
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. Ee Durbin (7)
32. David Goodger (6)
33. Ka-Ping Yee (6)
34. Jim J. Jewett (6)
35. Phillip J. Eby (6)
36. Daniel Holth (6)
37. Chris Angelico (6)
38. Inada Naoki (6)
39. Pablo Galindo (6)
40. Brandt Bucher (6)
41. Pablo Galindo Salgado (6)
42. Tzu-ping Chung (6)
43. Jelle Zijlstra (6)
44. William Woodruff (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. Hugo van Kemenade (3)
87. Ewa Jodlowska (3)
88. Aahz (2)
89. Oleg Broytman (2)
90. Fred L. Drake (2)
91. Jr. (2)
92. David Ascher (2)
93. Greg Wilson (2)
94. Gordon McMillan (2)
95. Christopher A. Craig (2)
96. Clark C. Evans (2)
97. Greg Stein (2)
98. Magnus Lie Hetland (2)
99. Jack Jansen (2)
100. Vinay Sajip (2)
101. Mark Hammond (2)
102. Josiah Carlson (2)
103. Terry Reedy (2)
104. Facundo Batista (2)
105. Ben Finney (2)
106. Calvin Spealman (2)
107. Tim Delaney (2)
108. Jesse Noller (2)
109. Stephen J. Turnbull (2)
110. Dirkjan Ochtman (2)
111. Miro Hrončok (2)
112. Cameron Simpson (2)
113. Alex Gaynor (2)
114. Ronald Oussoren (2)
115. Trishank Karthik Kuppusamy (2)
116. Vladimir Diaz (2)
117. Marina Moore (2)
118. Justin Cappos (2)
119. Stefano Borini (2)
120. Stefan Behnel (2)
121. Ned Deily (2)
122. Alexander Belopolsky (2)
123. Nick Humrich (2)
124. Mark E. Haase (2)
125. Robert Collins (2)
126. Koos Zevenhoven (2)
127. Cory Benfield (2)
128. Marcel Plch (2)
129. Mario Corchero (2)
130. Geoffrey Thomas (2)
131. Maggie Moss (2)
132. Stéphane Bidoul (2)
133. Mark Mendoza (2)
134. Shannon Zhu (2)
135. Paul Ganssle (2)
136. Daniel F Moisset (2)
137. Tobias Kohn (2)
138. David Foster (2)
139. Tal Einat (2)
140. Steven Troxler (2)
141. Erik De Bonte (2)
142. Sam Gross (2)
143. Ralf Gommers (2)
144. Facundo Tuesca (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)
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