patrick-kidger / patrick-kidger/jaxtyping

Failed to compile with Union

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question
Dominant language
Python
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Description

I have a function with signature:

from  typing import Union
from   jaxtyping import Float, jaxtyped
from   typeguard import typechecked

@jaxtyped
@typechecked
def fn(x: Union[Float[torch.Tensor, "B F"], int]): ...

which doesn't work. It fails to compile the AST

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the AST compilation failure with the Union annotation and decorator stack shown in the issue. Trace the annotation handling until the failure is located; done means this function compiles and its Union annotation is handled without the reported error.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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