In [1]:

    

def print_len_lbyl_list(x):
    if isinstance(x, list):
        print(len(x))
    else:
        print('x is not list')


    

In [2]:

    

print_len_lbyl_list([0, 1, 2])


    

    




3

In [3]:

    

print_len_lbyl_list(100)


    

    




x is not list

In [4]:

    

print_len_lbyl_list((0, 1, 2))


    

    




x is not list

In [5]:

    

print_len_lbyl_list('abc')


    

    




x is not list

In [6]:

    

def print_len_lbyl_list_tuple(x):
    if isinstance(x, (list, tuple)):
        print(len(x))
    else:
        print('x is not list or tuple')


    

In [7]:

    

print_len_lbyl_list_tuple([0, 1, 2])


    

    




3

In [8]:

    

print_len_lbyl_list_tuple(100)


    

    




x is not list or tuple

In [9]:

    

print_len_lbyl_list_tuple((0, 1, 2))


    

    




3

In [10]:

    

print_len_lbyl_list_tuple('abc')


    

    




x is not list or tuple