[Python-3000] Warning about future-unsafe usage patterns in Python 2.x e.g. dict.keys().sort()

Edward C. Jones edcjones at comcast.net
Mon Aug 28 16:21:10 CEST 2006

Brian Quinlan said:
> It is my understanding that, in Python 3000, certain functions and 
> methods that currently return lists will return some sort of view type 
> (e.g. dict.values()) or an iterator (e.g. zip). So certain usage 
> patterns will no longer be supported e.g. d.keys().sort().

I use this idiom fairly often:

d = dict()
thekeys = d.keys()
for key in thekeys:

What should I use in Python 3.0?

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