Python change global variable in function | Example code

Use global keywords to access and change global variables in function in Python. Note: No need for global for mutable objects, if you’re modifying them in place. Python change global variable example Simple example code won’t assign the new value to a local variable and not changing the value of the global variable. The ‘global’ Read More…


Python class static variable | Example code

Which variables declared inside the class definition, but not inside a method are class or static variables in Python. This is different from C++ and Java, but not so different from C#, where a static member can’t be accessed using a reference to an instance. When defining some member variable outside any member method, the Read More…


Python module global variable | Example code

To create a module global variable you just need to declare the variable as global in Python. Global variables are also accessible from outside the module by using module_name dot var_name. Syntax Python module global variable example Simple example code the only global variables Python really has are module-scoped variables. Let’s make a module-global variable Read More…


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…