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Ensure that object.__new__ never gets called with arguments

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This commit is contained in:
Mike Croucher 2015-02-28 18:22:44 +00:00
parent 79f4b26f4d
commit b4a3253e26
1 changed files with 11 additions and 3 deletions
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14
GPy/core/parameterization/priors.py
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@ -15,8 +15,12 @@ class Prior(object):
_instance = None
def __new__(cls, *args, **kwargs):
if not cls._instance or cls._instance.__class__ is not cls:
cls._instance = super(Prior, cls).__new__(cls, *args, **kwargs)
return cls._instance
newfunc = super(Prior, cls).__new__
if newfunc is object.__new__:
cls._instance = newfunc(cls)
else:
cls._instance = newfunc(cls, *args, **kwargs)
return cls._instance
def pdf(self, x):
return np.exp(self.lnpdf(x))
@ -52,7 +56,11 @@ class Gaussian(Prior):
for instance in cls._instances:
if instance().mu == mu and instance().sigma == sigma:
return instance()
o = super(Prior, cls).__new__(cls, mu, sigma)
newfunc = super(Prior, cls).__new__
if newfunc is object.__new__:
o = newfunc(cls)
else:
o = newfunc(cls, mu, sigma)
cls._instances.append(weakref.ref(o))
return cls._instances[-1]()