avoid AttributeError when object init fails

src/python/grpcio/grpc/_channel.py

@@ -1063,5 +1063,5 @@ class Channel(grpc.Channel):
             cygrpc.fork_unregister_channel(self)
         # This prevent the failed-at-initializing object removal from failing.
         # Though the __init__ failed, the removal will still trigger __del__.
-        if _moot is not None and hasattr(self, "_connectivity_state"):
+        if _moot is not None and hasattr(self, '_connectivity_state'):
             _moot(self._connectivity_state)

src/python/grpcio/grpc/_server.py

@@ -860,6 +860,7 @@ class _Server(grpc.Server):
         return _stop(self._state, grace)
 
     def __del__(self):
+        if hasattr(self, '_state'):
             # We can not grab a lock in __del__(), so set a flag to signal the
             # serving daemon thread (if it exists) to initiate shutdown.
             self._state.server_deallocated = True