Demonstrate difficulty with profiling and decorators

demo.py

from time import sleep

def decorator(func):
        def wrapper(*args, **kwargs):
                return func(*args, **kwargs)

        wrapper.__name__ += '_' + func.__name__
        return wrapper


@decorator
def d1():
        sleep(1)

@decorator
def d2():
        sleep(.2)

@decorator
def d3():
        sleep(.03)

def f1():
        d1()
        d2()
        f2()

def f2():
        d2()
        d3()
        d3()

def f3():
        f1()
        f2()
        d3()

if __name__ == '__main__':
        f1()
        f2()
        f3()