inheritance-dummy.py

class BaseClass:
  pass

print(BaseClass.__bases__)
# (<class 'object'>,)

print(dir(object))
# ['__class__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', 
#  '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', 
#  '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', 
#  '__sizeof__', '__str__', '__subclasshook__']

print(object.__bases__)
# ()