Message3130

One thing I'd like to point out to you is that you can avoid all those
setblocking(0|1) calls to switch on and off for select'ing by using the
cpython_compatible_select function, added for exactly this situation. To
use it, either call select.cpython_compatible_select() directly, or
import like this
from select import cpython_compatible_select as select
More details from here
http://wiki.python.org/jython/SelectModule#head-b6728987f9d2e872721ecf2174ad98e116b33292
If you really want to be using the sockets in non-blocking mode, you
should perhaps consider the asyncore and asynchat modules as a model for
writing your servers and clients.