• The execution date in the def execute() function is not a global variable, so should it be indented inside the __datasource_to_csv() function? Otherwise it is showing an error.

• Can you guide about the task1, task3 and task4? I mean, can you provide me some blogs which I can refer to define them properly, or can you send me some snippets of code that I can use to define the remaining task. As I cannot understand how to define them?

• Also, can you help me with what has to be replaced instead of my defined Postgres db connection in the task 2?

Hope you will revert back.