On Fri, 23 Jul 2010 10:45:32 +0200, Thomas Guettler wrote: > I use non-blocking io to check for timeouts. Sometimes I get EAGAIN > (Resource temporarily unavailable) on write(). My working code looks > like this. But I am unsure how many bytes have been written to the pipe > if I get an EAGAIN IOError.
It should be zero; that's how the underlying system calls behave. If any bytes are read/written, the number of bytes are returned. The call only blocks (or fails with EAGAIN if non-blocking I/O is enabled) if it isn't possible to read/write any data. -- http://mail.python.org/mailman/listinfo/python-list
