toggling decorators

Question

What\'s the best way to toggle decorators on and off, without actually going to each decoration and commenting it out? Say you have a benchmarking decorator:

Answer 1

I would implement a check for a config file inside the decorator's body. If benchmark has to be used according to the config file, then I would go to your current decorator's body. If not, I would return the function and do nothing more. Something in this flavor:

# deco.py
def benchmark(func):
  if config == 'dontUseDecorators': # no use of decorator
      # do nothing
      return func
  def decorator(): # else call decorator
      # fancy benchmarking 
  return decorator

What happens when calling a decorated function ? @ in

@benchmark
def f():
    # body comes here

is syntactic sugar for this

f = benchmark(f)

so if config wants you to overlook decorator, you are just doing f = f() which is what you expect.