Static method can be called without creating an object or instance. Simply create the method and call it directly. This is in a sense orthogonal to object orientated programming: we call a method without creating objects.
This runs directly against the concept of object oriented programming and might be frowned upon, but at times it can be useful to have a static method.
Related course: Complete Python Bootcamp: Go from zero to hero in Python
Normally you’d want to either have function calls, or to create an object on which you call its methods. You can however do something else: call a method in a class without creating an object.
Demonstration of static method below. Define a class with a method. Add the keyword @staticmethod above it to make it static.
A class can contain both static and non-static methods. If you want to call non-static methods, you’ll have to create an object. The code below does not work because an object is not created:
Normal class methods and static methods can be mixed (because why not?).
This can get very confusing: we use both the concept of object orientation and functional programming mixed in one class.
If you create an object, we can call non-static methods. But you can also call the static method without creating the object.
Overall, static methods are an interesting concept to know, but in practice you’d rarely use them. Sometimes using static methods could be an indication of having a bad design.
Try the exercises below
- Can a method inside a class be called without creating an object?
- Why does not everybody like static methods?
After completing these continue with the next exercise.