Guido van Rossum <gu...@python.org> added the comment:

IIUC the problem is that a read() syscall on the pty after the other end
has been closed raises an error instead of reading 0 bytes?  Isn't that
a bug in the pty implementation? For lots of devices (e.g. sockets,
pipes) a short non-empty read just means that you have to call read()
again to get more data -- it does not mean EOF.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue5380>
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