# diamond_problem.py

class ClassB:

num_calls_B = 0

def make_a_call(self):

print("Calling method in ClassB")

self.num_calls_B += 1

class LeftSubClass(ClassB):

num_left_calls = 0

def make_a_call(self):

ClassB.make_a_call(self)

print("Calling method in LeftSubClass")

self.num_left_calls += 1

class RightSubClass(ClassB):

num_right_calls = 0

def make_a_call(self):

ClassB.make_a_call(self)

print("Calling method in RightSubClass")

self.num_right_calls += 1

class SubClassA(LeftSubClass, RightSubClass):

num_calls_subA = 0

def make_a_call(self):

LeftSubClass.make_a_call(self)

RightSubClass.make_a_call(self)

print("Calling method in SubClassA")

self.num_calls_subA += 1

if __name__ == '__main__':

s = SubClassA()

s.make_a_call()

print("SubClassA: {}".format(s.num_calls_subA))

print("LeftSubClass: {}".format(s.num_left_calls))

print("RightSubClass: {}".format(s.num_right_calls))

print("ClassB: {}".format(s.num_calls_B))