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Python Python Collections (2016, retired 2019) Tuples Multiple Return Values

henry duquesnay
henry duquesnay
6,976 Points
Posted by henry duquesnay
henry duquesnay
6,976 Points

Why use a Tuple for Shopping List App??

I know this was probably an example of how to clean up code or something, and I know my understanding of coding is still early on, but why use a Tuple for this shopping list app?

I just remember that one of the shopping list app features was to be able to assign index values. If Tuples are immutable, doesn't this defeat the purpose of that feature and those lines of code -- to be able to move items around?

Just making sure i'm understanding, because i don't see how that code cleanup helped.

1 Answer

Josh Keenan
Josh Keenan
20,315 Points
Josh Keenan
Josh Keenan
20,315 Points

The tuple is being used to store constant values, the flask basics course is 189 minutes long, that won't change therefore a tuple is your best suited option. With the shopping list app, prices are probably going to be fixed and storing them in tuples in pairs of item, price. The tuples are then stored in a list so the items can be moved and shifted, but their name and price will be fixed.