+1 to what Bret said. 

I think a lot of people use argument and parameter interchangeably too, at least that's what I noticed.

On Thu, Jan 2, 2020, 4:10 PM Brett Cannon <brett@python.org> wrote:
I will say that for me, `ArgSpec` makes me think of `inspect.getargspec()` and friends: https://docs.python.org/3/library/inspect.html#inspect.getargspec.
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