def __init__(self, f):
"""
If there are no decorator arguments, the function
to be decorated is passed to the constructor.
"""
PrintUtils.green("Inside __init__()")
self.f = f
def __init__(self, arg1, arg2, arg3):
"""
If there are decorator arguments, the function
to be decorated is not passed to the constructor!
"""
PrintUtils.green("Inside __init__()")
self.arg1 = arg1
self.arg2 = arg2
self.arg3 = arg3
def __call__(self, *args):
"""
The __call__ method is not called until the
decorated function is called.
"""
print
PrintUtils.green("Inside __call__()")
self.f(*args)
PrintUtils.green("After self.f(*args)")
print
def __call__(self, f):
"""
If there are decorator arguments, __call__() is only called
once, as part of the decoration process! You can only give
it a single argument, which is the function object.
"""
PrintUtils.green("Inside __call__()")
@wraps(f)
def wrapped_f(*args):
PrintUtils.green("Inside wrapped_f()")
print 'Decorator arguments: ', self.arg1, self.arg2, self.arg3
f(*args)
PrintUtils.green("After f(*args)")
return wrapped_f
def wrapped_f(*args):
PrintUtils.green("Inside wrapped_f()")
print 'Decorator arguments: ', self.arg1, self.arg2, self.arg3
f(*args)
PrintUtils.green("After f(*args)")
