Decorator Design Pattern in Python
Write a Python program to implement Decorator Design Pattern.
Decorator
def decorateMyFunction(originalFunction): |
'''Decorates a function by wrapping its return value in a pair of HTML paragraph tags.''' |
def addAdditionalText(): |
# Obtain string returned by original function |
textFromOriginalFunction = originalFunction() |
# Adding new functionality to the function being decorated |
return "<p>" + textFromOriginalFunction + "</p>" |
return addAdditionalText |
|
@decorateMyFunction |
def functionToBeDecorated(): |
'''A simple function that returns a string.''' |
return "Hi there!" |
|
print( functionToBeDecorated() ) # OUTPUT: <p>Hi there!</p> |
See also:
- Python 101
- Object Oriented Python
- Design Patterns in Python
- 50+ Handy Standard Library Modules
- 60+ Handy Third Library Modules
- 50+ Tips & Tricks for Python Developers
- 50+ Know-How(s) Every Pythonista Must Know
