Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/19325#discussion_r140623236
--- Diff: python/pyspark/sql/tests.py ---
@@ -3308,12 +3306,12 @@ def test_vectorized_udf_invalid_length(self):
from pyspark.sql.functions import pandas_udf, col
import pandas as pd
df = self.spark.range(10)
- raise_exception = pandas_udf(lambda: pd.Series(1), LongType())
+ raise_exception = pandas_udf(lambda i: pd.Series(1), LongType())
--- End diff --
Maybe `lambda _: ...`.
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