Typed Python: Choose Sequence over List

Why I would default to choosing sequence over list when adding types to a function

A blog post on choosing more specific types rather than general ones like list and dict.

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The problem is that there's a severe hole in the ABCs: there is no distinction between "container whose elements are mutable" and "container whose elements and size are mutable".

(related, there's no distinction for supporting slice operations or not, e.g. deque)
- Yeah there's definitely a lot of room for improvement here

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