[Tutor] Newbie question re. Functions

[Jon Moore]

Hi,

I am still working my way through my 'Python for absolute beginners book'
and have hit a brick wall with one of the end of chapter exercises.

The challenge says:

Improve the function ask_number() so that the function can be called with a
step value. Make the default value of step 1.

The function looks like this:

def ask_number(question, low, high):
    """Ask for a number within the range"""
    response = None
    while response not in range(low, high):
        response =  int(raw_input(question))
    return response

The author has not eluded to 'step values' in anyway that I can see in the
proceeding chapters!

HELP!

--
Best Regards

Jon Moore
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