added get_encoding() to ConnectionPool

redis/client.py

@@ -2338,13 +2338,10 @@ def __init__(self, connection_pool, shard_hint=None,
         self.connection = None
         # we need to know the encoding options for this connection in order
         # to lookup channel and pattern names for callback handlers.
-        conn = connection_pool.get_connection('pubsub', shard_hint)
-        try:
-            self.encoding = conn.encoding
-            self.encoding_errors = conn.encoding_errors
-            self.decode_responses = conn.decode_responses
-        finally:
-            connection_pool.release(conn)
+        encoding_options = self.connection_pool.get_encoding()
+        self.encoding = encoding_options['encoding']
+        self.encoding_errors = encoding_options['encoding_errors']
+        self.decode_responses = encoding_options['decode_responses']
         self.reset()
 
     def __del__(self):

redis/connection.py

@@ -394,6 +394,7 @@ def read_response(self):
             raise response[0]
         return response
 
+
 if HIREDIS_AVAILABLE:
     DefaultParser = HiredisParser
 else:
@@ -955,6 +956,15 @@ def get_connection(self, command_name, *keys, **options):
         self._in_use_connections.add(connection)
         return connection
 
+    def get_encoding(self):
+        "Return information about the encoding settings"
+        kwargs = self.connection_kwargs
+        return {
+            'encoding': kwargs.get('encoding', 'utf-8'),
+            'encoding_errors': kwargs.get('encoding_errors', 'strict'),
+            'decode_responses': kwargs.get('decode_responses', False)
+        }
+
     def make_connection(self):
         "Create a new connection"
         if self._created_connections >= self.max_connections: