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Supporting `Union`

See original GitHub issue

quick thought: plenty of functions accept multiple types for a given argument using typing.Union. It would be nice if we could somehow support that. Perhaps if a Union is specified, the widget itself could be “swappable” (i.e. right click on it and you can select from the various types in the Union)

Issue Analytics

State:
Created 3 years ago
Reactions:1
Comments:9 (6 by maintainers)

Top GitHub Comments

1reaction

tlambert03commented, Aug 23, 2022

Maybe a better scenario of where Union would make sense would be Union[PointsData, SurfaceData]. Functions operating on points could equally operate on Surfaces (or the vertices thereof, respectively).

yep, agreed! That’s the bit that I think could already work fine, but napari would have to register something for that union. (I see that the combinatorics get hairy… and it’s possible magicgui could also help here… but I think it’s best to have a little input from the downstream library)

1reaction

tlambert03commented, Mar 17, 2021

for optional, see https://github.com/napari/magicgui/issues/145

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