Great! In Python, you can also use tuples to pass a varying number of arguments to a function. Consider the following example:
def average_value(*args):
if len(args) == 0:
return 0.0
sum = 0.0
count = 0
for arg in args:
sum += arg
count += 1
return sum/count
The parameter in the average_value() function definition is *args. The asterisk sign (*) before the variable name means any number of arguments. Technically, this is a tuple, which means we can use the len() function or a for loop inside the method body.
The average_value() function can now take any number of arguments and return their average. This means that the function will work with any of these invocations:
average_value(1) # 1.0 average_value(1, 2, 3) # 2.0 average_value(34, 89, 243, 982, 9) # 271.4
Write a function named min_max_difference. The function should accept any number of arguments and return the difference between the greatest and smallest numbers. If zero or one argument is passed, return 0.
Inside the function, define two variables: min and max. Initially, both of them should equal args[0]. Then, check each item in args and see if it's greater than max or less than min; update the max or min values accordingly.
