fix to be runnable with prctl module in Python3

src/threads.py

@@ -14,6 +14,7 @@ There are also other threads in the `.network` package.
 """
 
 import threading
+import six
 
 from class_addressGenerator import addressGenerator
 from class_objectProcessor import objectProcessor
@@ -32,6 +33,7 @@ else:
         """Set the thread name for external use (visible from the OS)."""
         prctl.set_name(name)
 
+    if six.PY2:
         def _thread_name_hack(self):
             set_thread_name(self.name)
             threading.Thread.__bootstrap_original__(self)