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dshape is not a type #240

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reversefold opened this issue Feb 21, 2020 · 1 comment
Open

dshape is not a type #240

reversefold opened this issue Feb 21, 2020 · 1 comment

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@reversefold
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reversefold commented Feb 21, 2020 •
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When using a datashape.dshape in typing.Tuple I get a runtime error saying that the dshape is not a type:

In [10]: typing.Tuple[datashape.dshape("3 * float64")]
...
TypeError: Tuple[t0, t1, ...]: each t must be a type. Got dshape("3 * float64").
@reversefold
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I'm actually struggling to figure out what datashape is for.... As its own library it seems like it doesn't serve any purpose if it can't be used for type hinting. The documentation talks about the grammar and what types can be modeled but what is the utility of that? What can one do with that information once it has been defined?

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