Tox fixes, reduced to 3.9 only

custom_components/localtuya/pytuya/__init__.py

@@ -925,7 +925,7 @@ class TuyaProtocol(asyncio.Protocol, ContextualLogger):
                     payload = payload.decode()
                 except Exception as ex:
                     self.debug("payload was not string type and decoding failed")
-                    raise DecodeError("payload was not a string: %s", ex)
+                    raise DecodeError("payload was not a string: %s" % ex)
                     # return self.error_json(ERR_JSON, payload)
 
             if "data unvalid" in payload:

pylint.rc

@@ -176,7 +176,8 @@ disable=line-too-long,
         dangerous-default-value,
         unreachable,
         unnecessary-pass,
-		broad-except
+        broad-except,
+        raise-missing-from
 
 # Enable the message, report, category or checker with the given id(s). You can
 # either give multiple identifier separated by comma (,) or put this option