On Wed, 11 Dec 2013 12:27:19 +0200,
Tamer Higazi <tamerito...@arcor.de> wrote :
> If i would have 100.000 - 500.000 entries, where 150 would match, I 
> don't want to go over those completely.
> So, if there is a pythonic way to get it solved on a performant way, or 
> a ZODB way as well that would be wondefull.

BTrees have a very nice API, which allow scanning only a subset of keys
by providing min and max boundaries:
  for key, value in some_btree.items(
          min='aa', max='b', excludemax=True):
      # Do stuff
should do what you want.

Vincent Pelletier
ERP5 - open source ERP/CRM for flexible enterprises
For more information about ZODB, see http://zodb.org/

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