[Python-Dev] Iterating a closed StringIO

[Guido van Rossum]

On 11/17/05, Walter Dörwald <walter at livinglogic.de> wrote:
> Currently StringIO.StringIO and cStringIO.StringIO behave differently
> when iterating a closed stream:
>
> s = StringIO.StringIO("foo")
> s.close()
> s.next()
>
> gives StopIteration, but
>
> s = cStringIO.StringIO("foo")
> s.close()
> s.next()
>
> gives "ValueError: I/O operation on closed file".
>
> Should they raise the same exception? Should this be fixed for 2.5?

I think cStringIO is doing the right thing; "real" files behave the same way.

Submit a patch for StringIO (also docs please) and assign it to me and
I'll make sure it goes in.

--
--Guido van Rossum (home page: http://www.python.org/~guido/)