Re: [Python-Dev] What if replacing items in a dictionary returns the new dictionary?

On Fri, 29 Apr 2011 10:27:46 -0400, Roy Hyunjin Han <starsareblueandfaraway@gmail.com> wrote:

It would be convenient if replacing items in a dictionary returns the new dictionary, in a manner analogous to str.replace(). What do you think?

This belongs on python-ideas, but the short answer is no. The general language design principle (as I understand it) is that mutable object do not return themselves upon mutation, while immutable objects do return the new object. -- R. David Murray http://www.bitdance.com