[ZODB-Dev] BTree mutating iteration

[Bob Ippolito]

On Feb 20, 2004, at 5:11 PM, John Belmonte wrote:

> Bob Ippolito wrote:
>> Maybe you're thinking about iterating over the return value of a dict 
>> method such as keys, values, or items.  Those are FULL COPIES of the 
>> dict's keys, values, or items as a list.  Iterating a dict is done 
>> via iterkeys, itervalues, iteritems, or the implicit iter (which is 
>> equivalent to iterkeys, demonstrated above).
>
> I was using the BTree's items(), which is unlike dict.items() in that 
> it does not return a sequence.  While that difference is documented in 
> the ZODB guide, the implications for the case of trying to mutate the 
> container while using items() for iteration are not.

I see, it would make sense to rename BTree's items to iteritems, and 
deprecate the items method then.

-bob