Getting the first non None value from list

Question

Given a list, is there a way to get the first non-None value? And, if so, what would be the pythonic way to do so?

For example, I have:

• a = objA.addr

Answer 1

Adapt from the following (you could one-liner it if you wanted):

values = (a, b, c, d)
not_None = (el for el in values if el is not None)
value = next(not_None, None)

This takes the first non None value, or returns None instead.