dictionary with order?

Erik Max Francis max at alcyone.com
Fri Mar 14 23:28:44 CET 2003


York wrote:

> Is it make sense to let a python dictionary arrange its items
> according to
> the order that an items be added in?
> for example, by add a new method "setorder" (d.setorder(1) or
> d.setorder(-1) for reverse order) to let mothods like keys(),
> values(),
> items() return sequence with items order same to the order for these
> items
> be added.

It might, but builtin dictionaries don't.  Write your own wrapper class
that maintains a list of the keys and a dictionary, and does the
appropriate overriding of the dictionary-like methods so that it does
what you want.

-- 
 Erik Max Francis / max at alcyone.com / http://www.alcyone.com/max/
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