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