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. brettcannon/sans-io
22. microsoft/vscode-docs
23. brettcannon/modutil
24. brettcannon/time-clock
25. brettcannon/flatten_filenames
26. elixir-lang/elixir-lang.github.com
27. brettcannon/find-duplicate-files
28. brettcannon/riscv-harmony
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/record-type
40. brettcannon/pip-secure-install
41. Azure/msrest-for-python
42. pypa/distutils
43. python-hyper/uritemplate
44. emmatyping/python-wasm
45. microsoft/TypeScript-Handbook
46. Azure/msrestazure-for-python
47. brettcannon/defy-layout-scorer
48. orsenthil/cpython-hg-to-git
49. python/buildmaster-config
50. python-hglib

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

(Listed from oldest to newest, although I may have become a co-author post-creation.)

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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)
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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)
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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)
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55. Richard Jones (4)
56. Tarek Ziadé (4)
57. Carl Meyer (4)
58. Jukka Lehtosalo (4)
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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)
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