[Tutor] printing items form list

[DirkJSoren@gmail.com]

On 03/03/2017 12:19 PM, Alan Gauld via Tutor wrote:
> On 03/03/17 18:52, Peter Otten wrote:
>> Antonio Zagheni via Tutor wrote:
>>
>>> suitcase = ["book, ", "towel, ", "shirt, ", "pants"]
>> Hm, looks like you opened Rafael's suitcase while he wasn't looking, and
>> sneaked in some commas and spaces ;)
>>
>> That's cheating...
> Its also very difficult to maintain since if you add
> new items to the suitcase you need to make sure they
> all have commas except the last one. And inconsistent data formatting in
> a list is a nightmare.
>
> For example, what happens if you decide to sort the list,
> the last item is no longer last and the commas are all
> messed up.
>
> That's one reason why join() is a better solution, it
> handles all of that for you. It's also faster, although
> in a small application you'd never notice the difference.
>
The ','.join(suitcase) is obviously best of all, but if one doesn't know 
that method, the below suggestion can be fixed with:

suitcase = ['book', 'towel', 'shirt', 'pants']

for i in suitcase:
     st = st + i + ', '

print('You have a s% in your luggage.' % st)