In [27]:

    

def log(func):
    """
    func is a function
    """
    def wrapper(*args, **kwargs):
        print('Args: ', args)
        print('kwargs: ', kwargs)
        return func(*args, **kwargs)
    return wrapper


    

In [28]:

    

@log
def soma(x, y):
    return x + y

@log
def sub(x, y):
    return x - y


    

In [29]:

    

soma(10, 5)


    

    




---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-29-ed4210cdd843> in <module>()
----> 1 soma(10, 5)

TypeError: 'NoneType' object is not callable

In [26]:

    

sub(10, 8)


    

    




Args:  (10, 8)
kwargs:  {}






    
Out[26]:





2

In [5]:

    

log(soma(2,3))


    

    




Args:  (2, 3)
kwargs:  {}






    
Out[5]:





<function __main__.log.<locals>.wrapper>

In [8]:

    

def teste(*args):
    print(args)


    

In [13]:

    

teste(1,2,3, "oi", "legal")
teste()


    

    




(1, 2, 3, 'oi', 'legal')
()

In [10]:

    

def teste2(**kwargs):
    print(kwargs)


    

In [14]:

    

teste2(2, 1, "oi")


    

    




---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-14-3dd7911bd2de> in <module>()
----> 1 teste2(2, 1, "oi")

TypeError: teste2() takes 0 positional arguments but 3 were given

In [15]:

    

def vetor(x, y=0, z=0):
    return (x, y, z)


    

In [16]:

    

vetor(1, 1, 1)


    

    
Out[16]:





(1, 1, 1)

In [17]:

    

vetor(1, 1)


    

    
Out[17]:





(1, 1, 0)

In [18]:

    

vetor(1, z=1)


    

    
Out[18]:





(1, 0, 1)

In [ ]: