How to get only the last part of a path in Python?

Question

In Python, suppose I have a path like this:

/folderA/folderB/folderC/folderD/

How can I get just the folderD part?

Answer 1

I like the parts method of Path for this:

grandparent_directory, parent_directory, filename = Path(export_filename).parts[-3:]
log.info(f'{t: <30}: {num_rows: >7} Rows exported to {grandparent_directory}/{parent_directory}/{filename}')