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() is used by functions  is used by lists
a = [1,2,3,4,5] produces a list
b = (1,2,3,4,5) produces a tuple
lists can be modified after creation: a = 7 is fine
tuples cannot: b = 7 results in an error
What are differences between tuple and list? When should I use list over tuple or the other way around? It looks like a list is better since you can modify the assignment of the elements inside the bracket. Thank you for your help!
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You pretty much answered your own question. If you want a collection to be immutable (can't be changed), a tuple is a better choice. If you want the same type of collection to be mutable (changeable), a list is a better choice.
Thank you guys for the help! I recently started to watch this course to learn some of program language. When listening to lectures, everything sounds straight forward, but when trying to solve problem sets, everything turns into a mess! haha