Pyupgrade + flynt + f-strings (#1759)

@akx Thank you so much for this! Thanks again for introducing me to a new tool that I'm sliding into my workflow as well.  

1 files changed, 3 insertions, 2 deletions

diff --git a/redis/commands/parser.py b/redis/commands/parser.py
index d8b0327..26b190c 100644
--- a/redis/commands/parser.py
+++ b/redis/commands/parser.py
@@ -46,8 +46,9 @@ class CommandsParser:
                 # version has changed, the commands may not be current
                 self.initialize(redis_conn)
                 if cmd_name not in self.commands:
-                    raise RedisError("{0} command doesn't exist in Redis "
-                                     "commands".format(cmd_name.upper()))
+                    raise RedisError(
+                        f"{cmd_name.upper()} command doesn't exist in Redis commands"
+                    )
 
         command = self.commands.get(cmd_name)
         if 'movablekeys' in command['flags']: