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From: Roy Smith <roy@panix.com>
Newsgroups: comp.lang.python
Subject: Re: replacing __dict__ with an OrderedDict
Date: Tue, 10 Jan 2012 09:05:42 -0500
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In article <mailman.4588.1326198152.27778.python-list@python.org>,
 Lie Ryan <lie.1296@gmail.com> wrote:

> On 01/10/2012 12:05 PM, Roy Smith wrote:
> > Somewhat more seriously, let's say you wanted to do test queries against
> > a database with 100 million records in it.  You could rebuild the
> > database from scratch for each test, but doing so might take hours per
> > test.  Sometimes, real life is just*so*  inconvenient.
> 
> All serious database has rollback feature when they're available to 
> quickly revert database state in the setUp/cleanUp phase.

I guess MongoDB is not a serious database?