Question

How do I make two decorators in Python that would do the following?

@make_bold @make_italic def say():    return "Hello" 

Calling say() should return:

"<b><i>Hello</i></b>" 

Answer 1

Check out the documentation to see how decorators work. Here is what you asked for:

from functools import wraps  def makebold(fn):     @wraps(fn)     def wrapper(*args, **kwargs):         return "<b>" + fn(*args, **kwargs) + "</b>"     return wrapper  def makeitalic(fn):     @wraps(fn)     def wrapper(*args, **kwargs):         return "<i>" + fn(*args, **kwargs) + "</i>"     return wrapper  @makebold @makeitalic def hello():     return "hello world"  @makebold @makeitalic def log(s):     return s  print hello()        # returns "<b><i>hello world</i></b>" print hello.__name__ # with functools.wraps() this returns "hello" print log('hello')   # returns "<b><i>hello</i></b>"