Depending on how precise you want to be, something like numpy'sArrayLike or a customSupportsPow protocol (example) may be what you're looking for.

In the future, questions like this should generally be asked in thediscussions tab or athttps://discuss.python.org/c/help/7

Hmm, but ArrayLike is kind of opposite, right? This is for objects that have array-like behaviour (which includes a scalar instance of a float). What I am looking at, are objects that have a float-like behaviour (which includes arrays of floats). Does that make sense? I was wondering if the was some kind of FloatLike (or maybe more mathematically correct: a RealNumberLike) protocol intyping, but I can't really seem to find something like this.

Sorry for asking in the wrong place; I was too hastly there. I can move the discussion to there, if you like :-)

Hmm, I would suggest that "float-like" means it supports all the methods of the builtin float object definedhere.

So I guess a Protocol with these method would suffice maybe? Could this be part oftyping?

So I guess a Protocol with these method would suffice maybe?

Whether it suffices or not really depends on your code. I would probably find it surprising if the thing you're thinking of as float-like actually returns float for some of those methods. Try it and see, your type checker should tell if you if your Protocol has things your type doesn't satisfy or if you use things not described by your Protocol!

Could this be part of typing?

There's a high bar for adding things to the standard library, particularly when they can easily be defined outside the standard library and haven't yet been evidenced to be highly desired.