How to fix ‘TypeError: an integer is required (got type bytes)’ error when trying to run pyspark after installing spark 2.4.4

This is happening because you’re using python 3.8. The latest pip release of pyspark (pyspark 2.4.4 at time of writing) doesn’t support python 3.8. Downgrade to python 3.7 for now, and you should be fine.