master
[SPARK-55355][PYTHON] Upgrade mypy version to the latest
[SPARK-36997][PYTHON][TESTS] Run mypy tests against ml, sql, streaming and core examples
[MINOR][PYTHON][DOC] Fix session window example usage
[SPARK-47683][PYTHON][BUILD] Decouple PySpark core API to pyspark.core package
[SPARK-38424][PYTHON] Warn unused casts and ignores
[SPARK-51950][BUILD] Upgrade `Parquet` to 1.15.2
[SPARK-32138] Drop Python 2.7, 3.4 and 3.5