monkey-patch Python 3.5.2 to disable broken asyncio.base_events._ipaddr_info optimization (#506)

artiq/monkey_patches.py

@@ -0,0 +1,13 @@
+import sys
+
+
+__all__ = []
+
+
+if sys.version_info[:3] == (3, 5, 2):
+    import asyncio
+
+    # See https://github.com/m-labs/artiq/issues/506
+    def _ipaddr_info(host, port, family, type, proto):
+        return None
+    asyncio.base_events._ipaddr_info = _ipaddr_info

artiq/protocols/broadcast.py

@@ -1,5 +1,6 @@
 import asyncio
 
+from artiq.monkey_patches import *
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer
 

artiq/protocols/logging.py

@@ -2,6 +2,7 @@ import asyncio
 import logging
 import re
 
+from artiq.monkey_patches import *
 from artiq.protocols.asyncio_server import AsyncioServer
 from artiq.tools import TaskObject, MultilineFormatter
 

artiq/protocols/pc_rpc.py

@@ -19,6 +19,7 @@ import logging
 import inspect
 from operator import itemgetter
 
+from artiq.monkey_patches import *
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer as _AsyncioServer
 from artiq.protocols.packed_exceptions import *

artiq/protocols/sync_struct.py

@@ -14,6 +14,7 @@ import asyncio
 from operator import getitem
 from functools import partial
 
+from artiq.monkey_patches import *
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer