expand AUTH fallback support to pre-v6 Redis servers.

Ref #1274

2 files changed, 8 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index 94c8ccb..2ca755d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,8 @@
       fallback for when these objects aren't explicitly closed by user code.
       Prior to this change any errors encountered in closing these resources
       would be hidden from the user. Thanks @jdufresne. #1281
+    * Expanded support for connection strings specifying a username connecting
+      to pre-v6 servers. #1274
 * 3.4.1
     * Move the username argument in the Redis and Connection classes to the
       end of the argument list. This helps those poor souls that specify all
diff --git a/redis/connection.py b/redis/connection.py
index dbcf332..f54aace 100755
--- a/redis/connection.py
+++ b/redis/connection.py
@@ -136,8 +136,14 @@ class BaseParser(object):
             'max number of clients reached': ConnectionError,
             'Client sent AUTH, but no password is set': AuthenticationError,
             'invalid password': AuthenticationError,
+            # some Redis server versions report invalid command syntax
+            # in lowercase
             'wrong number of arguments for \'auth\' command':
                 AuthenticationWrongNumberOfArgsError,
+            # some Redis server versions report invalid command syntax
+            # in uppercase
+            'wrong number of arguments for \'AUTH\' command':
+                AuthenticationWrongNumberOfArgsError,
         },
         'EXECABORT': ExecAbortError,
         'LOADING': BusyLoadingError,