[Tutor] step value

[Steven D'Aprano]

Vincent Balmori wrote:
> The question to that code I am trying to solve is
> 
> "Improve the function ask_number() so that the function can be called with a 
> step value. Make the default value of step 1."   


You need to be able to tell ask_number what step function you want to 
use. So it isn't enough to hard-code step=1 inside the function, step 
needs to be set when you call the function.

Currently you can do this:

     result = ask_number(question, low, high)

You need to be able to do this:

     result = ask_number(question, low, high, step)

where step is *optional*. So you need to:

* change the ask_number function to accept a fourth argument;
* make it optional rather than required;
* give it a sensible default value;
* within the function, that value must then be passed to range




-- 
Steven