How do "and" and "or" work when combined in one statement?

Posted by orokusaki on Stack Overflow See other posts from Stack Overflow or by orokusaki
Published on 2010-04-05T17:47:39Z Indexed on 2010/04/05 18:13 UTC
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For some reason this function confused me:

def protocol(port):
    return port == "443" and "https://" or "http://"

Can somebody explain the order of what's happening behind the scenes to make this work the way it does.

I understood it as this until I tried it:

Either A)

def protocol(port):
    if port == "443":
        if bool("https://"):
            return True
    elif bool("http://"):
        return True
    return False

Or B)

def protocol(port):
    if port == "443":
        return True + "https://"
    else:
        return True + "http://"

Is this some sort of special case in Python, or am I completely misunderstanding how statements work?

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