os.fdopen() issue in Python 3.1?

[Albert Hopkins]

On Tue, 2010-03-02 at 13:25 -0500, Terry Reedy wrote:

> To get help, or report a bug, for something like this, be as specific as 
> possible. 'Linux' may be too generic.

This is on Python on Gentoo Linux x64 with kernel 2.6.33.

> 
> > However, with CPython 3.1 I get:
> >
> >              input = os.fdopen(fd).read()
> >          IOError: [Errno 5] Input/output error
> >
> > Is there something wrong in Python 3.1?  Is this the correct way to do
> > this (run a process in a pseudo-tty and read it's output) or is there
> > another way I should/could be doing this?
> 
> No idea, however, the first thing I would do is call the .fdopen and 
> .read methods separately (on separate lines) to isolate which is raising 
> the error.

The exception occurs on the read() method.