Is this a bug of str.join?

[fireinice]

On Feb 16, 1:24 am, fireinice <zhzhqi... at gmail.com> wrote:
> Hi, all
> I'm just working around to generate some fake file for parsing. and I
> notice some weired thing happen.
>     time = str(random.randint(1000000000000000, 9999999999999999))
>     s_id = str(random.randint(1000000000000000, 9999999999999999))
>     p_id = str(random.randint(1000000000000000, 9999999999999999))
>     a_id = str(random.randint(1000000000000000, 9999999999999999))
>     s = "test"
>     a = [time, s_id, p_id, a_id, s]
>     print '\t'.join(a)
>
> the output is:
> 3107903582321032        6101282916386924        719897196119318 1780339444980186test
>
> you can notice that there is no tab between a_id and s
> if I switch a_id and p_id, it still happen, but if I delete one of
> ids, the problem gone.
> I tried this with python2.6 from debian source and python2.3 which I
> compiled from source. the result are both the same.
> What happened to str.join?
> thanks

I'm sorry, I found it should be the terminal width caused visual
problem, please kindly ignore this post.