How to access a class variable shadowed by an instance variable?

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I couldn't find a specific answer to my question. As you might know, a class in Python can have both class variables and instance variables. If a class has a class variable and an instance variable that both have the same name, how can I access both in another method of the class?

Suppose the following code. How can I access both variables myvar?

class myclass:
    myvar = "class variable"

    def __init__(self):
        self.myvar = "instance variable"
        pass

    def test(self):
        # difference between self.myvar and myclass.myvar
        return self.myvar


class_instance = myclass()
print(class_instance.test())
print(class_instance.myvar)     # "class variable" or "instance variable"

Here if I remove myvar from __init__ the self.myvar would refer to the class variable and if I add it, self.myvar would refer to the instance variable. So is it a rule that instance variables have precedence over class variable? I know that I can use myclass.myvar for referring to the class member, but in the last line of the above code class_instance.myvar would refer to both class variable and instance variable.


First of all, I suppose you are using Python 3. If that was not the case, you should change the first line to read: class myclass(object)

To access the instance variable, you can use: class_instance.myvar

To access the class variable, you can use: type(class_instance).myvar.

How to access a class variable shadowed by an instance variable , @Override. public void printInstanceVariable() {. System.out.print(x);. // If we still want to access the variable from the super class, we do that by  When you do that, the variable with the higher-level scope is hidden because the variable with lower-level scope overrides it. The higher-level variable is then “shadowed . You can access a shadowed class or instance variable by fully qualifying it — that is, by providing the name of the class that contains it.


All you need to do to get the class variable is access the class:

print(some_class.test2())
print(myclass.myvar)

Or, if you dont have the class in scope:

print(some_class.test2())
print(type(someclass).myvar)

Variable Shadowing and Hiding in Java, public class ClassVar2 { public static double a; // <----- Class variable public Recall that we can omit the implict parameter this to access an instance variable Shadowing can also occur with instance variable when a parameter variable or a  Instance variables: defined inside a class and have object-level scope. Class variables: defined inside a class with the static keyword. They have class-level scope common to all objects of the same class. Local variables: defined inside a method or in any conditional block.


When you are instantiating the class,

some_class = myclass()

you are basically overwriting the myvar value (when the __init__ constructor is called)

You can observe by using this code -

class myclass:
    myvar = "class variable"
    def __init__(self):
        print(self.myvar) #added a print statement
        self.myvar = "instance variable"
        pass
    def test(self):
        # difference between self.myvar and myclass.myvar
        return self.myvar


class_instance = myclass() 
print(class_instance.test())
print(class_instance.myvar)

Output is -

class variable #due to print command
instance variable #command called after the overwriting of myvar variable
instance variable #command called after the overwriting of myvar variable

Shadowing instance variables, These variables are initialized when the class is instantiated. If the instance variable and local variable have same name When you invoke print (access) them in the method, the local variable values will be printed  What is variable hiding and shadowing? In Java, there are three kinds of variables: local variables, instance variables, and class variables. Variables have their scopes. Different kinds of variables have different scopes. A variable is shadowed if there is another variable with the same name that is closer in scope. In other words, referring


Mate I've seen another way of finding this, and when I've seen that, you have come to my mind and I wanted to share it with you, because, I thought like, you might be searching for this solution:

With code that've written below you can reach both same named variables with underscoring first one.

   class myclass:
    __myvar = "class variable"
    def __init__(self):
        self.myvar = "instance variable"
        pass
    def test(self):
        # difference between self.myvar and myclass.myvar
        return self.myvar


class_instance = myclass() 
print(class_instance.test())
print(class_instance._myclass__myvar)

What is variable shadowing in java?, A Local Variable Shadows An Instance Variable When shadowing does happen, you can access the super class name by either the syntax super.name or by  The instance of new_shark is able to access all the class variables and print them out when we run the program. Class variables allow us to define variables upon constructing the class. These variables and their associated values are then accessible to each instance of the class. Instance Variables. Instance variables are owned by instances of the class.


class myclass:
    myvar = "class variable"

    def __init__(self):
        self.myvar = "instance variable"
        pass
    def test2(self):
        return myclass.myvar


some_class = myclass()
print(some_class.test2())
print(some_class.myvar)

This might help you! We are finding both of them :)

What is variable hiding and shadowing?, because the count local variable declared at line 7 shadows the variable count declared at the class level. If we want to access the instance  3.2.1 Account Class with an Instance Variable, a set Method and a get Method. Different accounts typically have different names. For this reason, class Account (Fig. 3.1) contains a name instance variable. A class’s instance variables maintain data for each object (that is, each instance) of the class.


Variable shadowing, If you still, need to access the instance variables inside the method, then, you can access it using this keyword as shown below. public class JavaHungry { String  If a class has a static variable, every object of that class has the same value for that variable. To access class variables, you use the same dot notation as with instance variables. To retrieve or change the value of the class variable, you can use either the instance or the name of the class on the left side of the dot.


Variable Shadowing and Variable Hiding in Java with Examples , In the previous post can we override static method in java? we saw that methods in Local variable can shadow instance variable Ok; if you want to access the instance variable in the method testVariable what can we do? Instance variables can be accessed directly by calling the variable name inside the class. However, within static methods (when instance variables are given accessibility), they should be called using the fully qualified name.


Variable Shadowing in Java – Edayan's notes, To access the hidden static variable inside a method or block – use use this keyword. this keyword refers to current instance of the class. because the count local variable declared at line 7 shadows the variable count declared at the class level. If we want to access the instance variable, we need to add this keyword. private void localVariable() { int count = 5; System.out.println("count = "+ this.count); } Method argument shadowing