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