In[35]: class Obj1():
   ...:     def __eq__(self, other):
   ...:         raise TypeError
   ...:     def __hash__(self):
   ...:         return 1
   ...:
In[36]: class Obj2():
   ...:     def __eq__(self, other):
   ...:         raise TypeError
   ...:     def __hash__(self):
   ...:         return 2
   ...:
In[37]: {Obj1():1, Obj2(): 2}
Out[37]: {<__main__.Obj1 at 0x1b59047ba58>: 1, <__main__.Obj2 at 0x1b59047bc50>: 2}