A local variable in Python | Example code

A variable declared inside the function is called a local variable in Python. Local variables are accessible only inside the function. Example local variable in Python Simple example code creates a local variable inside a function and tries to access it outside those functions. Output: shows an error (NameError) because we are trying to access Read More…


How to declare private variable in Python | Example code

Python does not have any private variables as Java does. Access member variable is available in Python. However, don’t need private variables in Python, because it’s not bad to expose your classes member variables. The double underscore “__” does not mean a “private variable”. Use it to define variables that are “class local” and which Read More…


Python class instance variables

In the Python class, if variables values are assigned inside methods are called instance variables. Instance variables can have different values across multiple instances of a class. Python class instance variables example Simple example code declared Instance variables inside a class method and print the values after creating an object. Create an instance of our Read More…


Python module variables | Example code

The only global variables really have are module-scoped variables in Python. You can’t make a variable that is truly global; a variable can have a particular scope. Python module variables example Simple example code to make a module-global variable is just assigned to a name. Imagine a file called main.py, containing this single line with Read More…


Python global variable in class | Example code

If a variable declared outside of the function or in global scope is called a global variable in Python. If it’s defined inside the class but not in any function then still it will available to other members. Python global variable in class example Simple example code Global variables can be used inside of functions Read More…


How to access private variable outside the class in Python | Example code

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: Read More…


How to access class variable in Python | Example code

Use class_name dot variable_name to access a class variable from a class method in Python. Use instance to access variables outside the class. Example access a class variable in Python Simple example code. A class variable is a variable that is shared by all objects of the same class. Output: How to access variables from Read More…


Python class variables | Basics

Python variable defines inside the class and which have the same value across all class instances is called class variables. A Class variable is declared when a class is being constructed. These variables are assigned a value at class declaration. Note: Modifying a class variable affects all objects instance at the same time. Python class Read More…


Python check if variable is string | Example code

Use the isinstance built-in function to check if the variable is a string in Python. It takes two arguments, the first is variable, and the second is the type you want to check for. Python checks if the variable is a string example Simple example code, The first parameter will be given variable, and the Read More…


Python null variable | None var Example code

There’s no variable null in Python; instead, there’s None keyword. It is a data type of the class NoneType Python null variable Example code. In Python, the ‘null’ object is the singleton None. The None keyword is used to define a null variable or an object. Output: Variable = None in Python? What does it Read More…