kou commented on a change in pull request #8887:
URL: https://github.com/apache/arrow/pull/8887#discussion_r543798465
##########
File path: python/pyarrow/tests/test_pandas.py
##########
@@ -4001,6 +4011,22 @@ def test_to_pandas_extension_dtypes_mapping():
assert isinstance(result['a'].dtype, pd.PeriodDtype)
+def test_array_to_pandas():
+ if LooseVersion(pd.__version__) < "1.0":
+ pytest.skip("ExtensionDtype __from_arrow__ protocol missing")
+
+ for arr in [pd.period_range("2012-01-01", periods=3, freq="D").array,
+ pd.interval_range(1, 4).array]:
+ result = pa.array(arr).to_pandas()
+ expected = pd.Series(arr)
+ tm.assert_series_equal(result, expected)
+
+ # TODO implement proper conversion for chunked array
+ # result = pa.table({"col": arr})["col"].to_pandas()
+ # expected = pd.Series(arr, name="col")
+ # tm.assert_series_equal(result, expected)
Review comment:
This test is failed on `wheel-manylinux*-cp{36,37}*`:
https://dev.azure.com/ursa-labs/crossbow/_build/results?buildId=21715&view=logs&j=0da5d1d9-276d-5173-c4c4-9d4d4ed14fdb&t=3367cfe7-6aa5-5a88-c888-e6814d74f6eb&l=176
```text
def test_array_to_pandas():
if LooseVersion(pd.__version__) < "1.0":
pytest.skip("ExtensionDtype __from_arrow__ protocol missing")
for arr in [pd.period_range("2012-01-01", periods=3, freq="D").array,
pd.interval_range(1, 4).array]:
result = pa.array(arr).to_pandas()
expected = pd.Series(arr)
> tm.assert_series_equal(result, expected)
E AssertionError: Attributes of Series are different
E
E Attribute "dtype" are different
E [left]: int64
E [right]: period[D]
```
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