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