def new_wrapped_instance(cls, *args, **kwargs):
""" obtain a better wrapped instance, experimental, doesnt work well on py2 """
func = args and args[0] or None
i = object.__new__(
type(cls.__name__ + '_' + func.__name__, (cls, ),
{'__doc__': func.__doc__}))
cls.__init__(i, *args, **kwargs)
return i
def __new__(cls, *p, **k):
if cls != type(cls.__instance):
__instance = object.__new__(cls)
#srubio: added init_single check to prevent redundant __init__ calls
if hasattr(cls,'__init__') and cls.__init__ != cls.__dumb_init:
setattr(cls,'init_single',cls.__init__)
setattr(cls,'__init__',cls.__dumb_init) #Needed to avoid parent __init__ methods to be called
if hasattr(cls,'init_single'):
cls.init_single(__instance,*p,**k) #If no __init__ or init_single has been defined it may trigger an object.__init__ warning!
cls.__instance = __instance #Done at the end to prevent failed __init__ to create singletons
return cls.__instance
def __new__(cls, *p, **k):
key = cls.parse_instance_key(*p,**k)
if cls != type(cls.__instances.get(key)):
__instance = object.__new__(cls)
__instance.__instance_key = key
#srubio: added init_single check to prevent redundant __init__ calls
if hasattr(cls,'__init__') and cls.__init__ != cls.__dumb_init:
setattr(cls,'init_single',cls.__init__)
setattr(cls,'__init__',cls.__dumb_init) #Needed to avoid parent __init__ methods to be called
if hasattr(cls,'init_single'):
cls.init_single(__instance,*p,**k) #If no __init__ or init_single has been defined it may trigger an object.__init__ warning!
cls.__instances[key] = __instance
#print '#'*80+'\n'+'%s.__instances[%s] = %s'%(str(cls),key,str(__instance))
return cls.__instances[key]
def __new__(cls, value):
print(cls, value)
__instance = object.__new__(cls, value)
cls.__init__(__instance, value)
return __instance.value
