Switch to flake8 for static code analysis (#1328)

flake8 catches a wider net of mistakes than pycodestyle and is more
commonly used by the larger community. For example, it catches unused
imports, a few of which existed. These have since been removed.

Two "noqa" comments were added. One ignores the _compat.py file as it
has a large amount of Python version specific code. The second is in
utils.py which intentionally does not use an import.

1 files changed, 0 insertions, 1 deletions

diff --git a/redis/client.py b/redis/client.py
index 7454321..cc77515 100755
--- a/redis/client.py
+++ b/redis/client.py
@@ -1,7 +1,6 @@
 from __future__ import unicode_literals
 from itertools import chain
 import datetime
-import sys
 import warnings
 import time
 import threading