[ZODB-Dev] B-Tree API

[Guido van Rossum]

> > > I believe the language Ruby has the notion of distinguishing operations 
> > > that mutate an object, and those that do not.
> > 
> > Scheme does too, I believe.  I'm afraid it's a little late to add this
> > to Python, except as an optional naming convention.
> 
> Maybe that could be an inspectable property of a function/method in
> newer versions of python, at least then something like idle with it's
> arg hints could also tell you if the method modifies or returns a copy
> of the object

Hm, I'm not sure what you mean.  Maybe you can make a more detailed
proposal?  (Not quite a PEP just yet.)

--Guido van Rossum (home page: http://www.python.org/~guido/)