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%load_ext cython


    

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%%cython
cdef class A:
    def __cinit__(self):
        print('A.__cinit__() called.')
    def __init__(self):
        print('A.__init__() called.')
    
cdef class B(A):
    def __init__(self):
        super().__init__()

cdef class C(A):
    def __init__(self):
        super().__init__()


    

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b = B()


    

    




A.__cinit__() called.
A.__init__() called.

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# 😭 Some user avoids super and called the constructors directly.
class D(B, C):
    def __init__(self):
        B.__init__(self)
        C.__init__(self)


    

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d = D()


    

    




A.__cinit__() called.
A.__init__() called.
A.__init__() called.

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# 😭 Some user avoids calling super entirely
class E(B, C):
    def __init__(self):
        print("I'm super enough already 😇")


    

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e = E()


    

    




A.__cinit__() called.
I'm super enough already 😇

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