maybe, maybe not

[DeaD_EyE]

You have a function like this:

from random import choice


def broken_function():
    return choice((1, "1", 1.1, None, ...))

A function which handles the None:

def maybe(obj):
    return obj is not None

And then the combination of broken_function and maybe:

result = broken_function()
if maybe(result):
    print("Got the result:", result)

If your function return results or different states, you can create sentinel objects for this task.

RESULT_NO_OK = object()
RESULT_INF = object()

There is also a new PEP about sentinels: https://www.python.org/dev/peps/pep-0661/

Another way to have this control flow is the use of exceptions. Raise your custom exceptions and the caller has to catch them.
With Python 3.11 the try-block without an occurring exception will cost nearly zero overhead: https://docs.python.org/3.11/whatsnew/3....imizations