How to apply a logical operator to all elements in a python list

Question

I have a list of booleans in python. I want to AND (or OR or NOT) them and get the result. The following code works but is not very pythonic.

def apply_and(alist         


        

Answer 1

The idiom for such operations is to use the reduce function (global in Python 2.X, in module functools in Python 3.X) with an appropriate binary operator either taken from the operator module or coded explicitly. In your case, it's operator.and_

reduce(operator.and_, [True, True, False])