Implement python decorators usind classes.

dec.py

class MyDecorator(object):

    def __init__(self, f):
        print "inside init {0}".format(f.__name__)
        f()

    def __call__(self):
        print "inside call {0}".format(__name__)

@MyDecorator
def afunction():
    print "inside afunction"

class entryExit(object):
    def __init__(self, f):
        self.f = f

    def __call__(self):
        print "Entering {0}".format(self.f.__name__)
        self.f()
        print "Exit {0}".format(self.f.__name__)

@entryExit
def func1():
    print "inside func1()"

@entryExit
def func2():
    print "inside func2()"

if __name__ == "__main__":
    print "Finished decorating function"
    afunction()


    func1()
    func2()