Question concerning decorators with arguments about decorator HOT 6 CLOSED

On Tue, Sep 12, 2017 at 5:28 PM, Neimad ***@***.***> wrote: First thanks for the great work. I've been reading your whole documentation and I am certainly missing the point, I am struggling with a syntax issue, cannot find the proper one. Suppose I want to do the following dumb thing: import decorator def printer(text): def _printer(func, *args, **kwargs): print(text) func(*args, **kwargs) return decorator.decorator(_printer) @printer("Hello")def world(): print("World") When executing, I get the following result: >>>world() Hello World And that's totally fine ! Suppose now that I want my text to be optional. To do so I give a default value of None to the text parameter, check whether there is something to print or not in my _printer function and omit the argument when decorating. Resulting in the following code: import decorator def printer(text=None): def _printer(func, *args, **kwargs): if text: print(text) func(*args, **kwargs) return decorator.decorator(_printer) @printer()def world(): print("World") Execution is now: >>>world() World And once again that's fine but a detail bothers me, I am forced to write @printer() instead of @printer which I would prefer. But I cannot do so because if I do this leads to the following error: >>>world() Traceback (most recent call last): File "toto.py", line 14, in <module> world()TypeError: _printer() missing 1 required positional argument: 'func' I have based my code on your blocking example in the documentation but that last detail beats me. Is there a way to modify this code to achieve what I want or must I stay with the @printer() syntax ? Thanks very much. Neimad — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#44>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACWYcBr0Kq2d2Vmx5OGnt_x51VHLthF9ks5shp6WgaJpZM4PUyJm> .