Dan Sommers wrote:
So what it is "hello" - "world"?
If we were to implement the entire group, it would be an element that can't be written in any simpler form. We could do that by representing a string as a sequence of signed substrings, and performing cancellations whereever possible during concatenation. But that would be a huge amount of machinery just to provide a cute notation for removing a prefix or suffix, with little in the way of other obvious applications. -- Greg _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/