copysort patch, was RE: [Python-Dev] inline sort option

[Skip Montanaro]

    Guido> For one, this will surely make lots of people write

    Guido>   for key in D.keys().copysort():
    Guido>       ...

    Guido> which makes an unnecessary copy of the keys. 

It might be viewed as unnecessary if you intend to change D's keys within
the loop.

    Guido>   keys = D.keys()
    Guido>   keys.sort()
    Guido>   for key in keys:
    Guido>       ...

Current standard practice is also fine.

Skip