Semihcan Doken questions

• How to modify/transform the column of a dataframe?
• Python Package removed by typing "pip uninstall package_name" in terminal, still shows up in the list output of "pip list"
• How to know what to import into the Python Interpreter in order to use installed python library [duplicate]
• Why does `head` need `()` and `shape` does not?
• How can I convert a pyspark.sql.dataframe.DataFrame back to a sql table in databricks notebook

Semihcan Doken answers