Today we will see what happens when we nest a function inside another. It seems a harmless thing to do but it happens to come with its own dose of interesting details. So it may make sense to nest a ...

As you continue writing code in Python, you end up creating many functions. Have you ever felt that some of these are local "helper functions" that you only need within one specific function? If you ...

Adding a nested field called new_column_name based on a lambda function working on the column_to_process nested field. Fields column_to_process and new_column_name need to have the same parent or be ...