About me

I'm a self-taught Pythonista and open-source contributor, with a particular interest in Python-typing. I'm a CPython core dev; I also maintain typeshed, typing_extensions and flake8-pyi, and I'm a contributor to mypy.

Open-source highlights

CPython code contributions:

• python/cpython#29316: "Improve output of Enum dir()"
• python/cpython#28950: "Add syntax highlighting for .pyi files in IDLE

Mypy contributions:

• python/mypy#12668: "Use tuple[object, ... and dict[str, object] as upper bounds for ParamSpec.args and ParamSpec.kwargs"
• python/mypy#12953: "Improve handling of overloads with ParamSpec"

Typeshed contributions:

• python/typeshed#7493: "Use PEP 604 syntax wherever possible"
• python/typeshed#6717: "Use PEP 585 syntax wherever possible"
• python/typeshed#6880: "Always use _typeshed.Self, where applicable"

typing_extensions contributions:

• python/typing_extensions#44: "Add a backport of generic NamedTuples"
• python/typing_extensions#46: "Backport generic TypedDicts"

flake8-pyi contributions:

• PyCQA/flake8-pyi#83: "Detect unused TypeVars"
• PyCQA/flake8-pyi#112: "Detect multiple Literal members in a union"
• PyCQA/flake8-pyi#199: "Add Y036: check for badly-defined __(a)exit__ methods"

CPython docs contributions:

• python/cpython#29335: "Clarify documentation on GenericAlias objects"
• python/cpython#29389: "Disambiguate __getitem__ and __class_getitem__ in the data model"
• python/cpython#31712: "Improve documentation for typing.TypeVar