1. python/cpython

1. python/peps
2. microsoft/vscode-python
3. brettcannon/python-launcher
4. brettcannon/caniusepython3
5. microsoft/vscode-jupyter
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. microsoft/vscode-docs
22. brettcannon/sans-io
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. 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. emmatyping/python-wasm
43. microsoft/TypeScript-Handbook
44. Azure/msrestazure-for-python
45. python-hyper/uritemplate
46. pypa/distutils
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. JuliaLang/julia
4. dusty-phillips/match-variant
5. brettcannon/choose-a-font.dev
6. brettcannon/importlib
7. python/steering-council
8. eclipse-archived/ceylon-lang.org
9. microsoft/vscode-telemetry-extractor
10. brettcannon/nowhere-on-the-web
11. rescript-lang/rescript-lang.org
12. beeware/toga
13. microsoft/vscode-anaconda-extension-pack
14. lustre-labs/lustre
15. python/blurb
16. brettcannon/porting-to-python-3-notebook
17. python/cherry-picker
18. Azure/azure-sdk-for-python
19. rust-lang/rust
20. openlawlibrary/pygls
21. microsoft/vscode
22. micktwomey/pyiso8601
23. python/typeshed
24. python/planet
25. github/gitignore
26. aosabook/500lines
27. Homebrew/legacy-homebrew
28. brettcannon/vscode-zephyr-asdl
29. Homebrew/homebrew-core
30. WebAssembly/design
31. pypa/pipenv
32. square/dagger
33. cookiecutter/cookiecutter
34. brettcannon/cpython-wasi-buildbot
35. badges/shields
36. inko-lang/inko
37. dotnet/docs
38. thechangelog/show-notes
39. Mariatta/github-bot-tutorial
40. jazzband/pip-tools
41. vstinner/misc
42. micropython/micropython
43. microsoft/vscode-wiki
44. python/psf-salt
45. MPOS/php-mpos
46. MeeseeksBox/meeseeksbox.github.io
47. vibora-io/vibora
48. riverscuomo/apps
49. microsoft/sql-server-samples
50. moby/mobywebsite
51. gleam-lang/language-tour
52. jaraco/skeleton
53. buildout/buildout
54. python-hyper/h2
55. progit/progit2
56. MicrosoftDocs/visualstudio-docs
57. python/typing
58. beeware/liquid-demo
59. aio-libs/aiohttp
60. matplotlib/matplotlib
61. ponylang/pony-tutorial
62. dabeaz/ply
63. kushaldas/pep582
64. microsoftarchive/msgraph-sdk-python
65. python/pyperformance
66. microsoft/TypeScript-wiki
67. microsoft/vscode-isort
68. pypa/flit
69. asyncio-docs/asyncio-doc
70. larryhastings/appeal
71. rustwasm/book
72. python/python-docs-theme
73. huggingface/agents-course
74. python/core-sprint
75. conda/ceps
76. conda/conda
77. pyscript/pyscript
78. microsoft/language-server-protocol
79. python/pythonineducation.org
80. bloodyowl/rescript-test
81. astral-sh/ruff
82. psf/webassembly
83. microsoft/vscode-docker
84. sarugaku/resolvelib
85. bytecodealliance/wasmtime
86. python/cpython-devcontainers
87. fastapi/sqlmodel
88. WebAssembly/wasi-sdk
89. microsoft/vscode-python-templates
90. kushaldas/pym
91. Django
92. actions-rs/install
93. briandealwis/ferret
94. microsoftgraph/python-sample-pagination
95. saschpe/mozilla-plugins
96. cometkim/rescript-vitest
97. conda/conda-build
98. 11ty/11ty-website
99. rust-lang/rustfmt
100. google/grumpy
101. zwaldowski/match-label-action
102. cardoe/stderrlog-rs
103. brettcannon/character-frequency
104. victor-o-silva/python-links-from-link-header
105. mesonbuild/meson
106. Devid-Ba/Text-adventure
107. adafruit/Adafruit_CircuitPython_CircuitPlayground
108. microsoft/PTVS
109. vega/ipyvega
110. ansible/ansible
111. reubeno/brush
112. microsoft/vscode-pylint
113. markshannon/faster-cpython
114. Enderchief/gleam-tools
115. python/importlib_metadata
116. Azure/azure-functions-python-library
117. okken/pytest-srcpaths
118. Azure/azure-cosmos-python
119. scikit-learn/scikit-learn
120. astral-sh/uv
121. python/pythontestdotnet
122. pycascades/welcome-wagon-2018
123. lorenzofox3/zora
124. palantir/python-language-server
125. microsoft/python-sample-vscode-django-tutorial
126. bungcip/better-toml
127. stellar/new-docs
128. WebAssembly/component-model
129. livebook-dev/livebook
130. psf/black
131. psf/fundable-packaging-improvements
132. oauthlib/oauthlib
133. casey/just
134. spotify/pedalboard
135. Homebrew/brew
136. syl20bnr/spacemacs
137. pypa/setuptools-scm
138. riscv-software-src/riscv-tests
139. topazproject/topaz
140. python-poetry/tomlkit
141. ericpalakovichcarr/pytest-pythonpath
142. aurelia/documentation
143. rocketreach/rocketreach_python
144. nayafia/nayafia
145. regebro/supporting-python-3
146. starship/starship
147. Lukasa/language-restructuredtext
148. GraphQLGuide/book
149. pypa/trove-classifiers
150. rust-lang/log
151. bagder/http2-explained
152. diogonfs/pyinit
153. absurdia/absurdia-py
154. VSCodeVim/Vim
155. devcontainers/features
156. facebook/pyre-check
157. jupyter/notebook
158. extism/extism
159. gleam-lang/otp
160. pypa/pipx
161. python/mypy
162. microsoft/vscode-tools-for-ai
163. Quansight-Labs/free-threaded-compatibility
164. score-spec/spec
165. microsoft/az-partner-center-cli
166. microsoft/debugpy
167. pyvideo/old-pyvideo
168. pytest-dev/pytest
169. PyCQA/pyflakes
170. pablogsal/cpython_leaderboard
171. stellar-deprecated/docs
172. devcontainers/images
173. MicrosoftDocs/azure-docs
174. bitbldr/sprocket_docs
175. clearlydefined/website
176. pyvideo/data
177. stellar/awesome-stellar
178. Azure/azure-cli
179. Fyrd/caniuse
180. golang/go
181. gleam-lang/gleam
182. pyca/pyopenssl
183. kushaldas/asaman
184. w3c/ServiceWorker
185. twisted/klein
186. realpython/python-guide
187. pypa/build
188. pypi/warehouse
189. conda/conda-docs
190. jupyterlab/jupyterlab
191. google/yapf
192. wntrblm/nox
193. gleam-lang/website
194. microsoft/vscode-extension-samples
195. jupyter/jupyter.github.io
196. chhantyal/py3readiness
197. dusty-phillips/macabre
198. pdm-project/pdm
199. lustre-labs/ui
200. getsentry/responses
201. luabud/hello-vscodespaces
202. MagicStack/MagicPython
203. riverscuomo/new-albums
204. ebkalderon/tower-lsp
205. hynek/build-and-inspect-python-package
206. sphinx-doc/sphinx
207. mozilla-services/konfig
208. jupyter-book/mystmd.org
209. microsoftgraph/microsoft-graph-docs-contrib
210. vscode-restructuredtext/vscode-restructuredtext
211. gitkraken/vscode-gitlens
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 (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. 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)
196. Richard Oudkerk (1)
197. Alexandre Vassalotti (1)
198. Jervis Whitley (1)
199. Kerrick Staley (1)
200. Greg Slodkowicz (1)
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204. Benoit Bryon (1)
205. Lennart Regebro (1)
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