8000 API: Standardize ExtensionDtype subtype name · Issue #22224 · pandas-dev/pandas · GitHub
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API: Standardize ExtensionDtype subtype name#22224
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API - ConsistencyInternal Consistency of API/BehaviorAPI DesignEnhancementExtensionArrayExtending pandas with custom dtypes or arrays.
@TomAugspurger

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@TomAugspurger
TomAugspurger
opened on Aug 6, 2018

We have a few extension arrays that build off one or more ndarrays. You'll often want to get the underlying NumPy dtype for that array.

  • IntegerArray uses .type
  • IntervalArray uses .subtype

IntervalArray can't use .type, since that has to be Interval. So IntegerArray will need to alias subtype to type.

Are we happy with the name subtype?

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    API - ConsistencyInternal Consistency of API/BehaviorAPI DesignEnhancementExtensionArrayExtending pandas with custom dtypes or arrays.

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