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https://issues.apache.org/jira/browse/ARROW-640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16406056#comment-16406056
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ASF GitHub Bot commented on ARROW-640:
--------------------------------------
pitrou commented on a change in pull request #1765: ARROW-640: [Python]
Implement __hash__ and equality for Array scalar values Arrow scalar values
URL: https://github.com/apache/arrow/pull/1765#discussion_r175709965
##########
File path: python/pyarrow/tests/test_scalars.py
##########
@@ -171,3 +171,37 @@ def test_dictionary(self):
categorical.categories)
for i, c in enumerate(values):
assert v[i].as_py() == c
+
+ def test_int_hash(self):
+ # ARROW-640
+ arr = pa.array([1, 1, 2, 1])
+ arr2 = pa.array([1, 1, 2, 1])
+ assert arr[0].__hash__() == arr2[0].__hash__()
+
+ def test_int_eq(self):
Review comment:
No need to add this test, it is implicitly tested for in `test_int64` above.
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> [Python] Arrow scalar values should have a sensible __hash__ and comparison
> ---------------------------------------------------------------------------
>
> Key: ARROW-640
> URL: https://issues.apache.org/jira/browse/ARROW-640
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Miki Tebeka
> Assignee: Alex Hagerman
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> {noformat}
> In [86]: arr = pa.from_pylist([1, 1, 1, 2])
> In [87]: set(arr)
> Out[87]: {1, 2, 1, 1}
> In [88]: arr[0] == arr[1]
> Out[88]: False
> In [89]: arr
> Out[89]:
> <pyarrow.array.Int64Array object at 0x7f8c8c739e08>
> [
> 1,
> 1,
> 1,
> 2
> ]
> {noformat}
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