Update lib: Tornado

libs/tornado/netutil.py

@@ -57,6 +57,9 @@ u('foo').encode('idna')
 # some they differ.
 _ERRNO_WOULDBLOCK = (errno.EWOULDBLOCK, errno.EAGAIN)
 
+if hasattr(errno, "WSAEWOULDBLOCK"):
+    _ERRNO_WOULDBLOCK += (errno.WSAEWOULDBLOCK,)
+
 
 def bind_sockets(port, address=None, family=socket.AF_UNSPEC, backlog=128, flags=None):
     """Creates listening sockets bound to the given port and address.