subclass_model

gistfile1.py

from astropy.modeling.core import Model
from astropy.modeling.parameters import Parameter



class MyModel1(Model):
    param_names = ['a']

    def __init__(self, a):
        self._a = Parameter('a', a, self, 1)
        super(MyModel1, self).__init__(self.param_names, n_inputs=1, n_outputs=1)

    def __call__(self):
        pass

'''
Generally param_names holds parameters that are used in model evaluation and for which properties are created. 
If, for some reason this is not needed, the model canbe written in this way:
'''

class MyModel(Model):
    def __init__(self, a):
        super(MyModel, self).__init__(param_names=[], n_inputs=1, n_outputs=1)

    def __call__(self):
        pass