Ron Adam wrote: > Michael Hoffman wrote: >> Ron Adam wrote: >>> In all current cases, (that I know of), of differing types, '+' >>> raises an error. >> >> Not quite: >> >>> "hello " + u"world" >> u'hello world' >> >>> 4.5 + 5 >> 9.5 >> > In the case of numeric types, it's an addition and not a join. I should > have specified in 'all cases, (I know of), where '+' is used to join > objects, but I thought that was clear from the context of the > discussion. I haven't needed to use unicode yet, so it didn't come to > mind.
I believe Michael intended to show that "4.5 + 5" actually represents using + with two different types, specifically a float and an int, thus giving at least two common cases where errors are not raised. (While the issue of "addition" vs. "join" is merely a (human) language issue... one could just as well say that those two numbers are being "joined" by the "+".) -Peter -- http://mail.python.org/mailman/listinfo/python-list
