Interested in typechecking and formatting Python code. Core developer for Black, typeshed, CPython, mypy, typing-extensions. Software engineer at Quora.
- Orinda, CA
- https://www.quora.com/profile/Jelle-Zijlstra
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python/typing Public
Python static typing home. Hosts the documentation and a user help forum.
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4,224 contributions in the last year
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Activity overview
Contribution activity
August 2022
Created 4 commits in 2 repositories
Created a pull request in python/typeshed that received 1 comment
Reviewed 43 pull requests in 9 repositories
python/mypy
13 pull requests
- [mypyc] Add support for building mypyc code on WASM
- Use builtin generics and PEP 604 for type annotations wherever possible
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CI: Add
workflow_dispatchas a trigger for several workflows - Enable generic NamedTuples
- Enable generic TypedDicts
- Use --no-implicit-optional by default
- docs: use ParamSpec in "Declaring decorators"
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Add type inference for
dict.keysmembership - Respect tuple.__getitem__ from typeshed
- refactor: prefer f-strings to .format in docs
- Merge subtype visitors
- Enable recursive type aliases behind a flag
- stubtest: ignore __pyx_vtable__
python/typeshed
11 pull requests
- fix: add missing NETLINK re-exports of linux socket constants
- Add stubs for tree_sitter
- fpdf2: fix for 2.5.6 changes
- feat: Support extras in stubtest_third_party.py
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Change
astupleandasdictfactories -
Add "Naming convention" to
test_cases/README.md - Additional return types for psycopg2 connections
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Improve
.keys(),.values(),.items()methods forTypedDicts -
Remove a few unused
TypedDicts -
Remove un-needed
__hash__methods fromstdlib -
io.IOBase: correct metaclass
psf/black
7 pull requests
- Update stable branch after publishing to PyPI
- Reduce single file format overhead by lazily importing modules and loading .gitignore / --exclude
- Infer target version based on project metadata
- Port & upstream mypyc wheel build workflow
- Strip trailing commas in subscripts with -C
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Fix misdetection of project root with
--stdin-filename - feat(#3195): add preview option support for blackd







