On Thu, 21 Oct 2010 16:19:43 -0700, Raymond Hettinger wrote:
> I'm considering a nested mapping class for the collections module and
> would like to solicit feedback from people here on comp.lang.python:
>
>http://code.activestate.com/recipes/577434-nested-contexts-a-chain-
of-mapping-objects
Raymond Hettinger wrote:
On Oct 21, 5:18 pm, Paul Rubin wrote:
The API you suggested looks reasonable although you should also say how
to delete a context, how to find the inner contexts of a context, etc.
The c.parent.parent.parent chain finds successive enclosing contexts:
while c.paren
On Oct 21, 6:13 pm, Paul Rubin wrote:
> Raymond Hettinger writes:
> > The c.parent.parent.parent chain finds successive enclosing contexts:
>
> I was asking about finding the child contexts, not the parents. This is
> analogous to how you can find the keys in a dict with dict.keys().
Children p
On Oct 22, 8:48 am, Robert Kern wrote:
> On 10/21/10 6:19 PM, Raymond Hettinger wrote:
>
> > I would appreciate any feedback on the API and on how well it fits
> > with various use cases that you've found in the wild.
>
> We've done something similar in the past:
>
> https://svn.enthought.com/svn/
On Oct 22, 4:17 am, Peter Otten <__pete...@web.de> wrote:
> I just read the recipe, and it looks good to me except for the len() and
> iter() implementations:
>
> >>> a = Context()
> >>> a["x"] = 1
> >>> b = a.new_child()
> >>> b["x"] = 2
> >>> len(b)
> 2
> >>> b.keys()
>
> ['x', 'x']
>
> I would h
On 10/21/10 6:19 PM, Raymond Hettinger wrote:
I would appreciate any feedback on the API and on how well it fits
with various use cases that you've found in the wild.
We've done something similar in the past:
https://svn.enthought.com/svn/enthought/CodeTools/trunk/enthought/contexts/multi_co
Raymond Hettinger wrote:
> I'm considering a nested mapping class for the collections module and
> would like to solicit feedback from people here on comp.lang.python:
>
>http://code.activestate.com/recipes/577434-nested-contexts-a-chain-of-
mapping-objects/
>
> The class is an attempt to ge
Raymond Hettinger writes:
> I'm considering a nested mapping class for the collections module and
> would like to solicit feedback from people here on comp.lang.python:
>
>
> http://code.activestate.com/recipes/577434-nested-contexts-a-chain-of-mapping-objects/
>
Django has such contexts in
Raymond Hettinger writes:
> The c.parent.parent.parent chain finds successive enclosing contexts:
I was asking about finding the child contexts, not the parents. This is
analogous to how you can find the keys in a dict with dict.keys().
>> One question: what should
>>
>> c["foo"] = 7
>> d
On Oct 21, 5:18 pm, Paul Rubin wrote:
> The API you suggested looks reasonable although you should also say how
> to delete a context, how to find the inner contexts of a context, etc.
The c.parent.parent.parent chain finds successive enclosing contexts:
while c.parent is not None:
pri
Raymond Hettinger writes:
> Hopefully, that discussion can be in a separate thread.
> This is really about keeping all the nice O(1) characteristics
> of dicts and keeping their straight-forward API while adding
> the ability to support nested lookups.
Are you saying the O(1) characteristics are
On Oct 21, 4:28 pm, Paul Rubin wrote:
> Raymond Hettinger writes:
> What I really want is a Haskell-like persistent (i.e. purely functional)
> dictionary implemented as an AVL tree or something like that.
Hopefully, that discussion can be in a separate thread.
This is really about keeping all th
Raymond Hettinger writes:
> I would appreciate any feedback on the API and on how well it fits
> with various use cases that you've found in the wild.
What I really want is a Haskell-like persistent (i.e. purely functional)
dictionary implemented as an AVL tree or something like that. It means
t
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