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Use of TypeVar(... bound=Example) vs Type[Example] #8

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Dantali0n opened this issue May 4, 2021 · 0 comments
Open

Use of TypeVar(... bound=Example) vs Type[Example] #8

Dantali0n opened this issue May 4, 2021 · 0 comments
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discussion Further information is required or should be discussed help wanted Extra attention is needed

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@Dantali0n
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From the Python documentation it is clear that using TypeVar(... bound=Example) will constraint the type to a subclass of Example.

What is unclear is how:

_U = TypeVar('_U', bound=Example)
Type[_U]

Is different from:

Type[Example]

Is there any reason to prefer one over the other? and what are the consequences of these differences?
@Dantali0n Dantali0n added help wanted Extra attention is needed discussion Further information is required or should be discussed labels May 4, 2021
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