On Wed, Sep 29, 2010 at 3:03 PM, Sidnei da Silva <[email protected]> wrote: > On Tue, Sep 28, 2010 at 8:02 PM, Robert Collins > <[email protected]> wrote: >> Specifically, rather than a regular object, they are pseudo stateless >> - classes are used, and helpers that contain some magic code get used. > > Just to clarify: I think that's a common misunderstanding. The only > contract for layers is that they have 'setUp'/'tearDown' methods and > __bases__ and it isn't specified anywhere that they must be a class. > We're happily using objects in Landscape, we just happen to set the > __bases__ attribute of those objects to 'fake' layer inheritance.
http://docs.python.org/library/stdtypes.html specifies that __bases__ is the base class tuple for a class; sure you work around this but the design *intends* to use classes, and *intends* to call separate base class methods separately without the usual python (must call super explicitly) logic occuring. The difference between 'requires setUp, tearDown and __bases__' and 'classes' is inconsequential IMNSHO. -Rob _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
