Why the nonsense number appears?

[Sybren Stuvel]

Johnny Lee enlightened us with:
> Why are there so many nonsense tails? thanks for your help.

Because if the same reason you can't write 1/3 in decimal:

http://docs.python.org/tut/node16.html

Sybren
-- 
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself? 
                                             Frank Zappa