[Python-Dev] On breaking modules into packages Was: [issue10199] Move Demo/turtle under Lib/

[Antoine Pitrou]

Le mercredi 03 novembre 2010 à 14:16 +0000, Michael Foord a écrit :
> On 03/11/2010 14:05, Nick Coghlan wrote:
> > On Wed, Nov 3, 2010 at 9:32 AM, Raymond Hettinger
> > <raymond.hettinger at gmail.com>  wrote:
> >> Sounds like a decision to split a module into a package is a big commitment.  Each of the individual file names becomes a permanent part of the API.  Even future additional splits are precluded because it might break someones dotted import (i.e. not a single function can be moved between those files -- once in unittest.utils, alway in unittest.utils).
> > Can Python 2.7 pickles containing unittest classes be unpickled using
> > 2.6 or earlier? Even if nobody uses the new names for imports, I
> > believe they implicitly end up included in any pickles involving
> > affected classes (I seem to recall we've been bitten by that before
> > when moving things around).
> 
> Yes, since unittest.TestCase is still available (as are all the names). 
> I believe so anyway...

unittest.TestCase is not really pickleable. There were
test_multiprocessing issues because of that (see recent SVN checkins).

Regards

Antoine.