itholic commented on a change in pull request #33744:
URL: https://github.com/apache/spark/pull/33744#discussion_r703134281
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File path: python/pyspark/pandas/typedef/typehints.py
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@@ -323,7 +323,7 @@ def infer_pd_series_spark_type(pser: pd.Series, dtype:
Dtype) -> types.DataType:
if dtype == np.dtype("object"):
if len(pser) == 0 or pser.isnull().all():
return types.NullType()
- elif hasattr(pser.iloc[0], "__UDT__"):
+ elif hasattr(pser, "iloc") and hasattr(pser.iloc[0], "__UDT__"):
Review comment:
Got it!
Then I think we should create the ticket and handle this separately.
(Or, at least we should change the function name and type of input `pser`,
and mention this fix in PR description with before & after examples)
btw, actually I think we don't need to use `pandas_udf` here, though.
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