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ToggleA function in Python is a first-order object. A function can have another function as its argument and wrap another function definition inside it. This helps in modifying a function without actually changing it. Such functions are called decorators.
This feature is also available for wrapping a class. This technique is used to manage the class after it is instantiated by wrapping its logic inside a decorator.
def decorator_function(Wrapped):
class Wrapper:
def __init__(self,x):
self.wrap = Wrapped(x)
def print_name(self):
return self.wrap.name
return Wrapper
@decorator_function
class Wrapped:
def __init__(self,x):
self.name = x
obj = Wrapped('Vista Academy')
print(obj.print_name())
Here, Wrapped is the name of the class to be wrapped. It is passed as argument to a function. Inside the function, we have a Wrapper class, modify its behavior with the attributes of the passed class, and return the modified class. The returned class is instantiated and its method can now be called.
Output:
When you execute this code, it will produce the following output −
Vista Academy
Key Takeaway: Master Python wrapper classes—enhance functionality with decorators—at Vista Academy!