pandas: fix iloc to accept list#187
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gramster merged 1 commit intomicrosoft:mainfrom Apr 20, 2022
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| np_ndarray_bool = npt.NDArray[np.bool_] | ||
| np_ndarray_str = npt.NDArray[np.str_] | ||
| IndexType = Union[slice, np_ndarray_int64, Index, List[int], Series[int]] | ||
| MaskType = Union[Series[bool], np_ndarray_bool, Sequence[bool]] |
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This change doesn't make sense to me. A List is a Sequence, and Sequence is preferred when typing args. Where you having issues with the way it was?
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Sequence includes Tuple, and we have to differentiate those cases in pandas.
If you do df.iloc[3,4], the argument is a tuple, and returns a scalar. If you do df.iloc[[3,4]], the argument is a list, and returns a DataFrame. Sequence matches both cases. Also, Sequence matches a str, which is painful in other contexts.
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Got it, thanks for clarifying. I think when I created these a lot of the time the docs said things like "list-like" and those I went and made Sequence.
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Allow
DataFrame.ilocto accept lists, etc. that produce aDataFrame