I am trying to create a dynamic view which will create a checkbox for each element of the categories table which in created by the categories() class in my module.py file.

Now inside my users() class I created the function fields_view_get with the following code

def fields_view_get(self, cr, uid, view_id=None, view_type='form', context=None, toolbar=False,submenu=False):
    result = super(categories, self).fields_view_get(cr, uid, view_id, view_type, context, toolbar,submenu)
    school_obj = self.pool.get('sim.categories')
    result['arch'] = '''<field name="father_name" />'''
    return result

As you can see my code is not even close to generating the dynamic fields, I am still far away of doing that but even this test gives me the following error

TypeError: super(type, obj): obj must be an instance or subtype of type

I figured out that if I change categories in the result = ... line for users the error will go away giving place to new ones, but why would I want to inherit the users class inside the users class.

Any tip on what might be wrong or what I am missing will be appreciated.