Krishnakant <[email protected]> wrote:
> I liked this idea of dispatchTable.
> is it possible to say some thing like
> inst = dispatchTable{"ham"}
> according to me, inst will become the instance of class ham.
> Another thing to note is that all the classes are in different modules.
> So where do I create the dict of classes mapped with the name?
You could use a metaclass which will get round the problem, provided
all the classes have a common baseclass, eg
class BaseThing(object):
registry = {}
class __metaclass__(type):
def __init__(cls, name, bases, dict):
cls.registry[cls.__name__] = cls
class ThingOne(BaseThing):
pass
class ThingTwo(BaseThing):
pass
class ThingThree(BaseThing):
pass
print BaseThing.registry["ThingOne"]
print BaseThing.registry["ThingTwo"]
print BaseThing.registry["ThingThree"]
Which prints
<class '__main__.ThingOne'>
<class '__main__.ThingTwo'>
<class '__main__.ThingThree'>
--
Nick Craig-Wood <[email protected]> -- http://www.craig-wood.com/nick
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