[BUG]: Incomplete Support for Union & NotRequired #121
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@rnag here's the traceback to help investigation of point 2. I'm trying to understand what fix is needed but this get_parser_for_annotation function is complex. You can see from the traceback below that I am printing base type (I've inserted |
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@rnag are you able to take a look at this? is this project still maintained? |
claui
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Previously, annotating a `TypedDict` field with one of the `Required` and `NotRequired` wrappers introduced in Python 3.11, dataclass-wizard would raise the following error: > TypeError: issubclass() arg 1 must be a class Fix that error by adding support for `Required` and `NotRequired`. Partially addresses issue rnag#121. [1] [1]: rnag#121
claui
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Aug 18, 2024
Previously, annotating a `TypedDict` field with one of the `Required` and `NotRequired` wrappers introduced in Python 3.11, dataclass-wizard would raise the following error: > TypeError: issubclass() arg 1 must be a class Fix that error by adding support for `Required` and `NotRequired`. Partially addresses issue rnag#121. [1] [1]: rnag#121
claui
added a commit
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Aug 18, 2024
Previously, annotating a `TypedDict` field with one of the `Required` and `NotRequired` wrappers introduced in Python 3.11, dataclass-wizard would raise the following error: > TypeError: issubclass() arg 1 must be a class Fix that error by adding support for `Required` and `NotRequired`. Partially addresses issue rnag#121. [1] [1]: rnag#121
claui
added a commit
to dataclass-cauldron/dataclass-witch
that referenced
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Aug 18, 2024
Previously, annotating a `TypedDict` field with one of the `Required` and `NotRequired` wrappers introduced in Python 3.11, the library would raise the following error: > TypeError: issubclass() arg 1 must be a class Fix that error by adding support for `Required` and `NotRequired`. Partially addresses issue rnag#121. [1] [1]: rnag#121
claui
added a commit
to dataclass-cauldron/dataclass-witch
that referenced
this issue
Aug 18, 2024
Previously, annotating a `TypedDict` field with one of the `Required` and `NotRequired` wrappers introduced in Python 3.11, the library would raise the following error: > TypeError: issubclass() arg 1 must be a class Fix that error by adding support for `Required` and `NotRequired`. Partially addresses issue rnag#121. [1] [1]: rnag#121
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Issues
There are 2 issues I've stumbled across when combining some semi-complex types:
Union[...]orOptional: You can't useX | Ysyntax < python3.10 withfrom __future__ import annotationsif the types are not simple. In my case, it was when I was using a TypedDict(...) | None. I got crazy syntax error with incomplete terminations. E.g.:Root cause suggestion from community member who helped me debug was:
Again, suggestion from community member:
"I think it has to due with the Union[..., None]; the Optional parser assumes the first argument does not need a custom parser"
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