I'm found a bug


all the thing is what i can solve this chapter with:

for a in a:
** print a**
and this looks fine for interpretor


@downdowndowndown: That's not actually a bug, even though it doesn't look so nice.
The for loops in Python work this way:

for iterationVariable in iterable:
    print ("Uh, do something.")

If you want your iterationVariable to have the same name as your iterable, it isn't really a problem, your compiler won't throw an error informing you that it's wrong but I wouldn't recommend do it.
If it ever happens that someone has to study your code and see something like that, think about a code far more complex than that one, sure he/she will be looking forward to talk with you.