It is better to not import from one test in other tests, I propose adding a utils module for common types / helpers.

Originally posted by @sobolevn in #111624 (comment)

For example:

class FloatLike:
    def __init__(self, value):
        self.value = value

    def __float__(self):
        return self.value

Such support classes now scattered e.g. in Lib/test_float.py and in Lib/test_capi/test_getargs.py.

Linked PRs

• gh-111673: Refactor test_float/complex.py (split out support classes) #110956