[Tutor] importing modules to be tested

[Alex Kleider]

Thanks "dn" for your response.
I couldn't find an explicit answer to my question but am I to understand that
if one uses one of the testing frameworks then the problem goes away?
Alex

> Again, you've 'taken the bull by the horns' and bravely attempted to
> solve the problem.
>
> However, this is 're-inventing the wheel' and not 'standing on the
> shoulders of giants' (who have trod this path before).
>
> There are three popular automated-testing frameworks:
>
> - doctest
> - unittest
> - pytest
>
> NB there are others, as well as plug-ins/extensions to the above - the
>