🌈 Python Methods Comparison

🔹 1. Instance Method

• Works with self (object instance)

• Can access/modify instance variables

• Needs object to call

class Demo:
    def instance_method(self, x):
        return f"Instance Method: {x}"
        
obj = Demo()
print(obj.instance_method("Hello"))  # ✅ Works

🔹 2. Class Method

• Works with cls (class itself)

• Can access/modify class variables

• Decorated with @classmethod

class Demo:
    class_var = "I am Class Variable"
    
    @classmethod
    def class_method(cls):
        return f"Class Method: {cls.class_var}"
        
print(Demo.class_method())  # ✅ Works without object

🔹 3. Static Method

• No self, no cls

• Acts like a normal function inside class

• Decorated with @staticmethod

class Demo:
    @staticmethod
    def static_method(a, b):
        return f"Static Method: {a + b}"
        
print(Demo.static_method(5, 7))  # ✅ Works without object

🌟 Side-by-Side Comparison

✨ In short:

• Use Instance Method → when working with objects.

• Use Class Method → when working with the class itself.

• Use Static Method → when logic is independent of class & object.