BryanCutler commented on a change in pull request #24306:
[SPARK-27387][PYTHON][TESTS] Replace sqlutils.assertPandasEqual with Pandas
assert_frame_equals
URL: https://github.com/apache/spark/pull/24306#discussion_r272762923
##########
File path: python/pyspark/sql/tests/test_pandas_udf_grouped_map.py
##########
@@ -29,6 +29,25 @@
pandas_requirement_message, pyarrow_requirement_message
from pyspark.testing.utils import QuietTest
+if have_pandas:
+ import pandas as pd
+ from pandas.util.testing import assert_frame_equal as pd_assert_frame_equal
+
+if have_pyarrow:
+ import pyarrow as pa
+
+
+def assert_frame_equal(left, right):
+ """
+ Wrap Pandas function because pd.DataFrame.assign will infer mixed types
(unicode/str)
+ w/ Python 2, so need to set check_column_type=False
+ """
+ import sys
+ if sys.version < '3':
+ pd_assert_frame_equal(left, right, check_column_type=False)
Review comment:
This was the only surprise, and it's because calling `DataFrame.apply` with
kwargs infers the column names as str for Python 2, and causes
DataFrame.columns.inferred_type to be 'mixed' and the assert to fail
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