try to see if the issue is because of bad registered channels

Author: picnixz

Lib/test/test_interpreters/test_channels.py

@@ -49,6 +49,8 @@ class Send(End): pass
         class Recv(End): pass
 
         _ = importlib.reload(_channels)
+        # ensure that the following tests do not have the registered bad types
+        self.addCleanup(importlib.reload, _channels)
         _._register_end_types(Send, Recv)
         chan = _._channel_id(_.create(), _resolve=True)
         interp = interpreters.create()