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TYP: add some types to pandas/core/arrays/numpy_.py #29969

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Merged
merged 3 commits into from
Dec 3, 2019
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TYP: add some types to pandas/core/arrays/numpy_.py #29969

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TYP: add some types to pandas/core/arrays/numpy_.py
simonjayhawkins Dec 2, 2019
9976037
update per comments
simonjayhawkins Dec 2, 2019
36487f3
Merge remote-tracking branch 'upstream/master' into pandas/core/array…
simonjayhawkins Dec 3, 2019
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4 changes: 3 additions & 1 deletion pandas/core/arrays/numpy_.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import numbers
from typing import Union

import numpy as np
from numpy.lib.mixins import NDArrayOperatorsMixin
Expand Down Expand Up @@ -117,11 +118,12 @@ class PandasArray(ExtensionArray, ExtensionOpsMixin, NDArrayOperatorsMixin):
# pandas internals, which turns off things like block consolidation.
_typ = "npy_extension"
__array_priority__ = 1000
_ndarray: np.ndarray

# ------------------------------------------------------------------------
# Constructors

def __init__(self, values, copy=False):
def __init__(self, values: Union[np.ndarray, "PandasArray"], copy: bool = False):
if isinstance(values, type(self)):
values = values._ndarray
if not isinstance(values, np.ndarray):
Expand Down