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34 lines
878 B
34 lines
878 B
4 years ago
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from abc import ABC
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class RichRenderable(ABC):
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"""An abstract base class for Rich renderables.
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Note that there is no need to extend this class, the intended use is to check if an
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object supports the Rich renderable protocol. For example::
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if isinstance(my_object, RichRenderable):
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console.print(my_object)
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"""
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@classmethod
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def __subclasshook__(cls, other: type) -> bool:
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"""Check if this class supports the rich render protocol."""
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return hasattr(other, "__rich_console__") or hasattr(other, "__rich__")
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if __name__ == "__main__": # pragma: no cover
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from rich.text import Text
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t = Text()
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print(isinstance(Text, RichRenderable))
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print(isinstance(t, RichRenderable))
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class Foo:
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pass
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f = Foo()
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print(isinstance(f, RichRenderable))
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print(isinstance("", RichRenderable))
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