Fix selftest telopt callback for Python 3.4

[mudpy.git] / mudpy / tests / selftest.py

diff --git a/mudpy/tests/selftest.py b/mudpy/tests/selftest.py
index 3b00b48..202778a 100644 (file)
--- a/mudpy/tests/selftest.py
+++ b/mudpy/tests/selftest.py
@@ -432,9 +432,9 @@ def option_callback(telnet_socket, command, option):
         # any response to avoid endlessly looping
         pass
     elif command in (telnetlib.DO, telnetlib.DONT):
-        telnet_socket.send(b"%s%s%s" % (telnetlib.IAC, telnetlib.WONT, option))
+        telnet_socket.send(telnetlib.IAC + telnetlib.WONT + option)
     elif command in (telnetlib.WILL, telnetlib.WONT):
-        telnet_socket.send(b"%s%s%s" % (telnetlib.IAC, telnetlib.DONT, option))
+        telnet_socket.send(telnetlib.IAC + telnetlib.DONT + option)
 
 
 def main():