What type of *data* is the name of a list/tuple/dict, etc?

[alloydog]

for idx, device in enumerate(devices, start=1):
    print(f'{idx: >2d}.{device.part_no}')
user_choice = int(input(f'Select device (1-{len(devices)}): ')) - 1

I'm going through the various replies and solutions bit by bit (I want understand what each bit does, rather than just copy/paste and say "yee ha!" it works...)

From the namedtuple solution from @buran - I pretty much get what each bit does, except >2d. I even removed : >2d from the script, ran it and it worked pretty much the same.

What does the : >2d bit do?