On Wed, Apr 14, 2010 at 10:12 PM, C. Titus Brown <ctb@msu.edu> wrote:
On Thu, Apr 15, 2010 at 12:08:26AM -0500, Daniel Stutzbach wrote:
On Thu, Apr 15, 2010 at 12:02 AM, C. Titus Brown <ctb@msu.edu> wrote:
this seems like the right forum to ask -- is there a reason why Python doesn't have a 'bag' builtin type, e.g.
Python 2.7 and 3.1 have a Counter type, that is similar to (but not identical to) that recipe:
http://docs.python.org/py3k/library/collections.html#collections.Counter
Huh, seems like a different use case from mine -- I just would like to be able to refer to dictionary keys as attributes. So I guess the cookbook recipe distracted you from my real interest, which is the short notation:
b = bag(foo=bar, bif=baz)
assert b.foo == bar assert b.bif == baz
Still curious :)
Also, that's not a bag at all. Seems you're looking for something similar to namedtuple: http://docs.python.org/dev/library/collections.html#collections.namedtuple For the record, a bag is an unordered collection that permits duplicate elements. Sort of like an unordered, unindexable list, or a set that allows duplicate elements. It's got nothing whatsoever to do with being able to access elements using attribute syntax. Cheers, Chris -- http://blog.rebertia.com