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In-Depth Python OOP

bookMethod Resolution Order

Method Resolution Order is an order of searching the attributes/methods from Parent classes.

To check this order, you can use the mro() built-in method:


              
12345678910111213141516

            
class A:
    pass

class B:
    pass

class C(B):
    pass

class D(A):
    pass

class Child(C, D):
    pass

print(Child.mro())
copy

The mro() method returns a list of classes that represents the method and attribute search order.

Note

The mro() method can be called via classes, not for instances.


              
123456789

            
print(int.mro())
print(float.mro())
print(bool.mro())
print(str.mro())

class SomeClass:
    pass

print(SomeClass.mro())
copy

Note

Pay attention: all objects in Python are inherited from the object class.

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Merci pour vos commentaires !

Section 2. Chapitre 4

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bookMethod Resolution Order

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Method Resolution Order is an order of searching the attributes/methods from Parent classes.

To check this order, you can use the mro() built-in method:


              
12345678910111213141516

            
class A:
    pass

class B:
    pass

class C(B):
    pass

class D(A):
    pass

class Child(C, D):
    pass

print(Child.mro())
copy

The mro() method returns a list of classes that represents the method and attribute search order.

Note

The mro() method can be called via classes, not for instances.


              
123456789

            
print(int.mro())
print(float.mro())
print(bool.mro())
print(str.mro())

class SomeClass:
    pass

print(SomeClass.mro())
copy

Note

Pay attention: all objects in Python are inherited from the object class.

Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 2. Chapitre 4
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