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.

  • jadelord@discuss.tchncs.de
    1·
    2 years ago

    Good point, and Łukasz Langa mentioned this in his talk (check it out). He names it the robustness principle, in his words (around 22:20 mark:

    “Vague in what you accept, concrete in what you return”

    But he also mentions some gotchas like how Iterable[str] can backfire, because str is also an Iterable[str] and it might be better to use list[str].