In [1]:

    

def my_sum(*args):
    return sum(args)


    

In [2]:

    

print(my_sum(1, 2, 3, 4))


    

    




10

In [3]:

    

print(my_sum(1, 2, 3, 4, 5, 6, 7, 8))


    

    




36

In [4]:

    

def my_sum2(*args):
    print('args: ', args)
    print('type: ', type(args))
    print('sum : ', sum(args))


    

In [5]:

    

my_sum2(1, 2, 3, 4)


    

    




args:  (1, 2, 3, 4)
type:  <class 'tuple'>
sum :  10

In [6]:

    

def func_args(arg1, arg2, *args):
    print('arg1: ', arg1)
    print('arg2: ', arg2)
    print('args: ', args)


    

In [7]:

    

func_args(0, 1, 2, 3, 4)


    

    




arg1:  0
arg2:  1
args:  (2, 3, 4)

In [8]:

    

func_args(0, 1)


    

    




arg1:  0
arg2:  1
args:  ()

In [9]:

    

def func_args2(arg1, *args, arg2):
    print('arg1: ', arg1)
    print('arg2: ', arg2)
    print('args: ', args)


    

In [10]:

    

# func_args2(0, 1, 2, 3, 4)
# TypeError: func_args2() missing 1 required keyword-only argument: 'arg2'


    

In [11]:

    

func_args2(0, 1, 2, 3, arg2=4)


    

    




arg1:  0
arg2:  4
args:  (1, 2, 3)

In [12]:

    

def func_args_kw_only(arg1, *, arg2):
    print('arg1: ', arg1)
    print('arg2: ', arg2)


    

In [13]:

    

# func_args_kw_only(100, 200)
# TypeError: func_args_kw_only() takes 1 positional argument but 2 were given


    

In [14]:

    

func_args_kw_only(100, arg2=200)


    

    




arg1:  100
arg2:  200