Check the types of arguments in python

def my_abs(x):
    if not isinstance(x, (int, float)):
        raise TypeError('...');
    elif x>0:
        return x;
    else:
        return -x;

def my_abs(x):

if not isinstance(x, (int, float)):

raise TypeError('...');

elif x>0:

return x;

else:

return -x;