[Tutor] Beginner - understanding randint arguments

[Jay Lozier]

On 02/15/2014 11:25 AM, Marc Eymard wrote:
> Hello Tutor,
>
> I need to generate a random integer between 0 and 100.
>
> The range is supposed to be adjusted by my two variables:
> low_range and high_range.
>
> The logic of using the variables as part of the function arguments is 
> to manage to get a smaller range each time the function is called 
> _excluding_ the possible repeat of the return value of randint.
>
> Here is what happens in my script:
>
>     >>> import random
>     >>> low_range = -1
>     >>> high_range = 101
>     >>> random.randint(low_range + 1, high_range - 1)
>     56
>     >>> low_range
>     -1
>     >>> high_range
>     101*
>     *
>
>
> I was rather expecting:
>
>      >>> low_range
>
>     0
>
>     >>> high_range
>
>     100
>
>
> Can somebody explain why both low_range and high_range are still 
> returning their initial values ?
>
> Thanks,
> Marc*
> *

The variables low_range and high_range are not modified. The arguments 
to random.randint do not change the initial values of the variables, 
only the actual values passed.

-- 
Jay Lozier
jslozier at gmail.com