Python Quiz II

[thespeedbump]

Guess what this program does:

def throw():
raise Exception()

print 2 in [] == throw()

Comments

[rizen]

false?

I'm on my phone, otherwise I'd check it.

[thespeedbump]

Correct.

Why?

[rizen]

I forgot the reason that I had at the time, but I looked again and I think what must be happening is that it's returning false because 2 is not in [], and then it short-circuits there and never evaluates the function. I can't think of any other reason why the exception is not being raised.

[rizen]

Now that I'm home and able to test out that theory, I think it's likely the reason, as "2 in []" does indeed return False. (I couldn't remember if that was even a valid boolean test in Python.)

[rizen]

Hot shit, I was right for once.