How can I know the outcome of the "return True" function?

In the following code, if I run it on IDLE, it gives me no outcome.

But with the command return True, wasn't supposed to give me True on the outcome?

Or do I have to add something like print True?

data = [2,4,5,7,8,9,12,14,17,19,22,25,27,28,33,37]
target = 28

#Linear Search
def linear_search(data, target):
    for i in range(len(data)):
        if data[i] == target:
            return True
    return False