[Python-Dev] Assignment to class of module? (Autoloading? (Making Queue.Queue easier to use)) (original) (raw)

Phillip J. Eby pje at telecommunity.com
Fri Oct 14 03:42:32 CEST 2005

At 01:32 PM 10/14/2005 +1300, Greg Ewing wrote:

Phillip J. Eby wrote:

> Actually, it's desirable to be able to do it for anything. But certainly > for otherwise-immutable objects it can lead to aliasing issues. Even for immutables, it could be useful to be able to add behaviour that doesn't mutate anything.

I meant that just changing its class is a mutation, and since immutables can be shared or cached, that could lead to problems. So I do think it's a reasonable implementation limit to disallow changing the class of an immutable.

More information about the Python-Dev mailing list