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, 1 insertions, 0 deletions

diff --git a/redis/_compat.py b/redis/_compat.py
index 146e37d..a0036de 100644
--- a/redis/_compat.py
+++ b/redis/_compat.py
@@ -1,4 +1,5 @@
 """Internal module for Python 2 backwards compatibility."""
+# flake8: noqa
 import errno
 import socket
 import sys