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ENH: implement EA.size #32644

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Merged
merged 1 commit into from
Mar 14, 2020
Merged

ENH: implement EA.size #32644

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7 changes: 7 additions & 0 deletions pandas/core/arrays/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -407,6 +407,13 @@ def shape(self) -> Tuple[int, ...]:
"""
return (len(self),)

@property
def size(self) -> int:
"""
The number of elements in the array.
"""
return np.prod(self.shape)

@property
def ndim(self) -> int:
"""
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3 changes: 3 additions & 0 deletions pandas/tests/extension/base/interface.py
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Expand Up @@ -19,6 +19,9 @@ class BaseInterfaceTests(BaseExtensionTests):
def test_len(self, data):
assert len(data) == 100

def test_size(self, data):
assert data.size == 100

def test_ndim(self, data):
assert data.ndim == 1

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