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⚡️ Speed up method PandasIndexingAdapter._vindex_get by 5% #97

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⚡️ Speed up method PandasIndexingAdapter._vindex_get by 5% #97

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7 changes: 6 additions & 1 deletion xarray/core/indexing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1632,7 +1632,12 @@ class PandasIndexingAdapter(ExplicitlyIndexedNDArrayMixin):
def __init__(self, array: pd.Index, dtype: DTypeLike = None):
from xarray.core.indexes import safe_cast_to_index

self.array = safe_cast_to_index(array)
# Avoid unnecessary safe_cast_to_index if already an index
self.array = (
safe_cast_to_index(array) if not isinstance(array, pd.Index) else array
)

# Only call get_valid_numpy_dtype if needed, use dtype if provided already

if dtype is None:
self._dtype = get_valid_numpy_dtype(array)
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