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Can't instantiate priors

See original GitHub issue

Many priors from ‘GPy.priors’ don’t work at all:

In [2]: GPy.priors.Uniform()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-2-157dba2fded5> in <module>()
----> 1 GPy.priors.Uniform()

/home/aplavin/anaconda3/lib/python3.6/site-packages/GPy/core/parameterization/priors.py in __new__(cls, lower, upper)
    102                 if instance().lower == lower and instance().upper == upper:
    103                     return instance()
--> 104         o = super(Prior, cls).__new__(cls, lower, upper)
    105         cls._instances.append(weakref.ref(o))
    106         return cls._instances[-1]()

TypeError: object() takes no parameters

In [3]: GPy.priors.Uniform(0, 1)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-3-33389462e27b> in <module>()
----> 1 GPy.priors.Uniform(0, 1)

/home/aplavin/anaconda3/lib/python3.6/site-packages/GPy/core/parameterization/priors.py in __new__(cls, lower, upper)
    102                 if instance().lower == lower and instance().upper == upper:
    103                     return instance()
--> 104         o = super(Prior, cls).__new__(cls, lower, upper)
    105         cls._instances.append(weakref.ref(o))
    106         return cls._instances[-1]()

TypeError: object() takes no parameters

same issue with Exponential. On the other hand, some priors do work:

In [5]: GPy.priors.Gamma(1, 2)
Out[5]: Ga(1, 2)

but only with explicitly specified parameters, otherwise:

In [3]: GPy.priors.Uniform(0, 1)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-3-33389462e27b> in <module>()
----> 1 GPy.priors.Uniform(0, 1)

/home/aplavin/anaconda3/lib/python3.6/site-packages/GPy/core/parameterization/priors.py in __new__(cls, lower, upper)
    102                 if instance().lower == lower and instance().upper == upper:
    103                     return instance()
--> 104         o = super(Prior, cls).__new__(cls, lower, upper)
    105         cls._instances.append(weakref.ref(o))
    106         return cls._instances[-1]()

TypeError: object() takes no parameters

Issue Analytics

State:
Created 6 years ago
Comments:6

Top GitHub Comments

3reactions

OwenThomascommented, May 9, 2018

Hello,

Another bump for this issue, I am also experiencing it.

0reactions

yeahyelinacommented, Jul 6, 2022

Did anyone solve this problem? I have the exactly same issue. I tried the above one, but it fixed nothing.

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