TypeError: Not supported between instances of 'function' and 'int'

[Gribouillis]

The following example illustrates the basic effect of the @property decorator

>>> 
>>> class Foo:
...     def spam(self):
...         return 100
... 
>>> class Bar:
...     @property
...     def spam(self):
...         return 100
... 
>>> foo = Foo()
>>> foo.spam
<bound method Foo.spam of <__main__.Foo object at 0x7f7d3997b550>>
>>> foo.spam()
100
>>> bar = Bar()
>>> bar.spam
100
>>> 

Do you see the difference between classes Foo and Bar?