Why is dictionary.keys() a list and not a set?
steve at REMOVEMEcyber.com.au
Thu Nov 24 08:27:59 CET 2005
Peter Hansen wrote:
> Definitely not. I believe it's currently guaranteed that the order of
> the items in dict.keys() and dict.values() will match (i.e. the index of
> any key in its list will be the same as the index of the corresponding
> value in its list). This property is almost certainly used in some
> code, so it can't be broken without good reason.
As I recall, that guarantee is only if the dict is not
modified between retrieving the keys and retrieving the
More information about the Python-list