can someone please explain why the following works, in contrast to the second
example?
def decorator(func):
def on_call(*args):
print args
return func(args)
return on_call
class Foo:
@decorator
def bar(self, param1):
print 'inside bar'
f=Foo()
f.bar(4) # from where is the decorator getting the Foo instance?
I understand why the following works/does not work
class decorator2:
def __init__(self, func):
self.func=func
def __call__(self, *args):
self.func(*args)
class Foo2:
@decorator2
def bar2(self, param): pass
f2 = Foo2()
Foo2.bar2(f2, 4) # works, Foo2 instance and param are passed to decorator2 call
f2.bar2(4) # does not work, Foo2 instance is missing, decorator2 cannot invoke
method bar
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