On Oct 2, 8:11 am, Erik Max Francis <[EMAIL PROTECTED]> wrote: > It's because the `+=` operator is doing the equivalent of calling the > `extend` method, which treats its argument as a generic sequence, and > doesn't enforce type.
I see. Do you know whether this is seen as a problem with the language design? If so, this could be fixed by changing list.__add__ to call .extend on the left argument if it's a list... Or, by changing __iadd__ to throw a TypeError, whichever way around is seen as more correct/desirable. -- http://mail.python.org/mailman/listinfo/python-list
