Python try/except not working

The point in the code which raises the error must be inside the try block. In this case, it's likely that the error is raised inside the docopy function, but that isn't enclosed in a try block.

Note that docopy returns None. As such, you will raise an exception when you try to make an iter out of None -- but it won't be a ftplib.error_perm exception, it'll be a TypeError

The except clause will only catch exceptions that are raised inside of their corresponding try block. Try putting the docopy function call inside of the try block as well:

def hmm(haha):
    try:
        result = docopy(haha)
        it = iter(result)
    except ftplib.error_perm:
        print "Error Getting File"