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ARROW-10260: [Python] Missing MapType in to_pandas_dtype() #8422

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ARROW-10260: [Python] Missing MapType in to_pandas_dtype() #8422

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ARROW-10260 [Python] Missing MapType to Pandas dtype
dmarsh19 Oct 10, 2020
8a2655b
add test
jorisvandenbossche Oct 10, 2020
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1 change: 1 addition & 0 deletions python/pyarrow/tests/test_schema.py
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,7 @@ def test_type_to_pandas_dtype():
(pa.string(), np.object_),
(pa.list_(pa.int8()), np.object_),
# (pa.list_(pa.int8(), 2), np.object_), # TODO needs pandas conversion
(pa.map_(pa.int64(), pa.float64()), np.object_),
]
for arrow_type, numpy_type in cases:
assert arrow_type.to_pandas_dtype() == numpy_type
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1 change: 1 addition & 0 deletions python/pyarrow/types.pxi
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Expand Up @@ -47,6 +47,7 @@ cdef dict _pandas_type_map = {
_Type_STRING: np.object_,
_Type_LIST: np.object_,
_Type_DECIMAL: np.object_,
_Type_MAP: np.object_,
}

cdef dict _pep3118_type_map = {
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