Decorator toy code throws syntax errors

Decorator toy code throws syntax errors - Printable Version

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Decorator toy code throws syntax errors - kevinxhi - Sep-03-2017

I am a newbie trying to learn programming. Here is my decorator toy code. It throws syntax error when I call the argument function.

def boldtext(fn):"""This is the 1st decorator function"""
result = "<b>" + fn + "</b>"
return result

def italicizetext(fn): """This is the 2nd decorator function"""
result = "<i>" + fn() + "</i>"
return result

@boldtext
@italicizetext

def printsampletext(): """This is the argument function"""
return "Some sample text!"

printsampletext()

RE: Decorator toy code throws syntax errors - jogl - Sep-03-2017

Check out Harrison's tutorial on decorator's here:

https://pythonprogramming.net/decorators-intermediate-python-tutorial/

RE: Decorator toy code throws syntax errors - wavic - Sep-04-2017

def decorator(function):
    """The decorator function"""
    def wrapper(text):
        print("Decorated function ahead")
        function(text)
        print("Decorated function behind")
    return wrapper

@decorator
def func(text):
    print(text)

func("Decorated function")

Output:Decorated function ahead
Decorated function
Decorated function behind

Here is how to do a decorator. You can change completely the function behaviour that way. Instead, printing its own string it prints two more.

RE: Decorator toy code throws syntax errors - kevinxhi - Sep-04-2017

Thanks to both Tim and Bishop.