Access Modifiers in Python

 

Python: Types of Access Modifiers

There are 3 types of access modifiers for a class in Python. 

These access modifiers define how the members of the class can be accessed. Of course, any member of a class is accessible inside any member function of that same class. 

Moving ahead to the type of access modifiers, they are:

Access Modifier: Public

The members declared as Public are accessible from outside the Class through an object of the class.

Access Modifier: Protected

The members declared as Protected are accessible from outside the class but only in a class derived from it that is in the child or subclass.

Access Modifier: Private

These members are only accessible from within the class. No outside Access is allowed.

EXAMPLE:

class Demo:

  x = 5

  _y = 10

  __z = 20

  def met1(self):

    print(Demo.x)

    print(Demo._y)

    print(Demo.__z)

s = Demo()

s.met1()

5 10 20

print(Demo.x) #public variable

or print(s.x)

5

print(Demo._y) #protected variable

or print(s._y)

10

print(Demo.__z) #private variable

or print(s.__z)

---------------------------------------------------------------------------

AttributeError    

                        Traceback (most recent call last)

<ipython-input-131-bd3c01a1063d> in <module>()
----> 1 print(Demo.__z)

AttributeError:

type object 'Demo' has no attribute '__z'

To Access a Private Variable:

s._Demo__z #(objreference._classname__privatevariablename)

20