On 09/14/2013 03:27 AM, Antoine Pitrou wrote:
On Fri, 13 Sep 2013 21:59:11 -0700 Ethan Furman
wrote: I mean - given no function to retrieve the canonical key, one would have to resort to:
my_key = data.__transform__(given_key) for key, value in data.items(): if data.__transform__(key) == my_key: ....
Which is exactly why I, and others, would like to have the transform function easily available. Besides being able to use it to get a canonical key, one could use it to get the function itself. Yay, introspection!
Well, no, you misunderstand :) The transform function takes an original key (perhaps "canonical") and returns the transformed key, it can't do the reverse which is what getitem() does. i.e.:
Argh, of course you are right. Still, I think it would be useful to expose the transform function. Any good reason not to? -- ~Ethan~