Pythonic way to check if: all elements evaluate to False -OR- all elements evaluate to True

Question

I want the results of the function to be:

• All values evaluate to False (None, 0, empty string) -> True
• All values evaluate to True -> True
• Every

Answer 1

def all_equals(xs):
    x0 = next(iter(xs), False)
    return all(bool(x) == bool(x0) for x in xs)