v4.0.2
[SPARK-47763][CONNECT][TESTS] Enable local-cluster tests with pyspark-connect package
[SPARK-37022][PYTHON] Use black as a formatter for PySpark
[SPARK-40191][PYTHON][CORE][DOCS] Make pyspark.resource examples self-contained
[SPARK-50685][PYTHON] Improve Py4J performance by leveraging getattr
[SPARK-50685][PYTHON][FOLLOW-UP] Improve Py4J performance by leveraging getattr