Joris Van den Bossche created ARROW-15131:
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Summary: [Python] Coerce value_set argument to array in "is_in"
kernel
Key: ARROW-15131
URL: https://issues.apache.org/jira/browse/ARROW-15131
Project: Apache Arrow
Issue Type: Improvement
Components: Python
Reporter: Joris Van den Bossche
Small example I ran into:
{code:python}
>>> arr = pa.array(['a', 'b', 'c', 'd'])
>>> pc.is_in(arr, ['a', 'c'])
...
TypeError: "['a', 'c']" is not a valid value set
{code}
That's not a super friendly error message (it was not directly clear what is
not "valid" about this). Passing {{pa.array(['a', 'c']) explicitly works, but I
expected that the kernel would try this automatically (as we also convert the
first array argument to an array).
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