basis that saidnone of these is very serious issue for most programsdecorationsuniformity is an assetthe type difference is unlikely to matterand the speed hit of the extra calls will be insignificant furthermorethe latter of these occurs only when wrappers are usedcan often be negated if we simply remove the decorator when optimal performance is requiredand is also incurred by nondecorator solutions that add wrapping logic (including metaclassesas we'll see in converselyas we saw at the start of this decorators have three main advantages compared to the manager ( "helper"function solutions of the prior sectiondecorators offerexplicit syntax decorators make augmentation explicit and obvious their syntax is easier to recognize than special code in calls that may appear anywhere in source file--in our singleton and tracer examplesfor instancethe decorator lines seem more likely to be noticed than extra code at calls would be moreoverdecorators allow function and instance creation calls to use normal syntax familiar to all python programmers code maintenance decorators avoid repeated augmentation code at each function or class call because they appear just onceat the definition of the class or function itselfthey obviate redundancy and simplify future code maintenance for our singleton and tracer caseswe need to use special code at each call to use manager function approach--extra work is required both initially and for any modifications that must be made in the future consistency decorators make it less likely that programmer will forget to use required wrapping logic this derives mostly from the two prior advantages--because decoration is explicit and appears only onceat the decorated objects themselvesdecorators promote more consistent and uniform api usage than special code that must be included at each call in the singleton examplefor instanceit would be easy to forget to route all class creation calls through special codewhich would subvert the singleton management altogether decorators also promote code encapsulation to reduce redundancy and minimize future maintenance effortalthough other code structuring tools do toodecorators add explicit structure that makes this natural for augmentation tasks none of these benefits completely requires decorator syntax to be achievedthoughand decorator usage is ultimately stylistic choice that saidmost programmers find them to be net winespecially as tool for using libraries and apis correctly coding class decorators