Support TypedDict update() with keyword arguments #6019

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1. JukkaL

   added

   feature

   topic-typed-dict

   on Dec 6, 2018
2. JukkaL

   added a commit that references this issue on Dec 6, 2018

   Add support for additional TypedDict methods (#6011)

   ...

   d34d285
3. emmatyping commented on Dec 28, 2024

   

   emmatyping

   on Dec 28, 2024

   Last edited by emmatyping

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   I think this would need to be added as a specification of the standard. I do not see this as allowed anywhere, and currently the update method is annotated as accepting only a TypedDict in typeshed.

   Perhaps this should be moved to the typing repo (or I guess CPython)?
4. JelleZijlstra commented on Dec 28, 2024

   

   JelleZijlstra

   on Dec 28, 2024

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   I don't think this would require a change to the spec. The spec is mostly silent on the update() method (there is some discussion from the ReadOnly PEP at https://typing.readthedocs.io/en/latest/spec/typeddict.html#update-method), but it wouldn't be against the spec to allow update() calls that preserve the type. Pyright also accepts it: https://pyright-play.net/?code=GYJw9gtgBALgngBwJYDsDmUkQWEMoAqiApgCYAiSAxjAFC1UA2AhgM6tQAaAFEQmZRoBKAFy0oEqMxGYUdWqWLAowbgA8ZnUeMlqAdAFcEpZjGLdmAXgCMQ2kA

   Perhaps this should be moved to the typing repo (or I guess CPython)?

   The CPython issue tracker should only be used for tracking changes to the typing.py runtime. Spec changes should go to the python/typing issue tracker.

   👍React with 👍1Reacted by Emma Smith