It is called (un)packing. You can assign a list to several variables in one line and vice versa.
Star operator on right side is used to unpack a list ; on left side it is used to pack it.

my_list = [1, 2, 3]
a, b, c = *my_list  # Unpacking -> a = 1; b = 2; c = 3
first, *others = my_list  # Partial packing -> first = 1; others = my_list[1:] = [2, 3]

More into Python docs and PEP-448 (Unpacking generalizations).

thanks!

There is no decimal part, so no .0. You choose the greater prefix you actually exceed:

• 100,000 ohms don't exceed 1Mohms => 100k ohms
• 100,000,000 ohms exceed 1kohms and 1Mohms, choose the greater => 100M ohms