Python doesn’t have real private variables, so use the
__ prefix (two underlines at the beginning make a variable) from PEP 8. Use instance _class-name__private-attribute try to access private variables outside the class in Python.
Note: There is no such thing as “Private variable or method ” in Python. Double underscore is just name mangling:
Example access a private variable outside the class in Python
Simple example code
__amount is the private variable.
Outside the class, you can’t access the private variable, but inside the class, you can access the private variables.
class A: __amount = 45 a = A() print(a.__amount)
Output: AttributeError: ‘A’ object has no attribute ‘__amount’
Access through method
However, inside the class, we can access the private variables. Print the value inside hello() function.
class A: __amount = 45 def hello(self): print("Amount is ", A.__amount) a = A() a.hello()
How to prevent access to private variables outside the class in Python
Python example protected attributes.
class example: def __init__(self): self._variable1='protected variale' self.__variable2='private variable' self.variable3='public variable'
Do comment if you have any questions or suggestions on this Python variable tutorial.
Note: IDE: PyCharm 2021.1.3 (Community Edition)
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.
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