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Asked: 2026-05-11T14:08:06+00:00

Is there any way to write decorators within a class structure that nest well?

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Is there any way to write decorators within a class structure that nest well? For example, this works fine without classes:

def wrap1(func):     def loc(*args,**kwargs):         print 1         return func(*args,**kwargs)     return loc  def wrap2(func):     def loc(*args,**kwargs):         print 2         return func(*args,**kwargs)     return loc   def wrap3(func):     def loc(*args,**kwargs):         print 3         return func(*args,**kwargs)     return loc  def merger(func):     return wrap1(wrap2(wrap3(func)))   @merger def merged():     print 'merged'   @wrap1 @wrap2 @wrap3 def individually_wrapped():     print 'individually wrapped'  merged() individually_wrapped()

The output is:

1 2 3 merged 1 2 3 individually wrapped

which is what I want. But now let’s say that I want to make merged and individually_wrapped as static or class methods. This will also work, so long as the decorators are kept out of the class namespace. Is there any good way to put the decorators within the namespace? I’d rather not enumerate all the ways that won’t work, but the main problem is that if merger is a method, it can’t access the wrapX methods. Maybe this is a stupid thing to want to do, but has anyone gotten something like this to work, with all the decorators and decorated methods in the same class?

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1 Answer

  1. ‘Is there any good way to put the decorators within the namespace?’

    There’s no compelling reason for this. You have module files. Those are a tidy container for a class and some decorators.

    You don’t ever need decorators as methods of the class — you can just call one method from another.

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