fix lint errors

Author: gusdan

django_elasticache/cluster_utils.py

@@ -32,7 +32,7 @@ def get_cluster_info(host, port):
     client.write(b'version\n')
     res = client.read_until(b'\r\n').strip()
     version_list = res.split(b' ')
-    if not len(version_list) in [2, 3] or version_list[0] != b'VERSION':
+    if len(version_list) not in [2, 3] or version_list[0] != b'VERSION':
         raise WrongProtocolData('version', res)
     version = version_list[1]
     if StrictVersion(smart_text(version)) >= StrictVersion('1.4.14'):

django_elasticache/memcached.py

@@ -47,7 +47,7 @@ def update_params(self, params):
                           ' in binary mode')
         else:
             params['BINARY'] = True  # patch params, set binary mode
-        if not 'OPTIONS' in params:
+        if 'OPTIONS' not in params:
             # set special 'behaviors' pylibmc attributes
             params['OPTIONS'] = {
                 'tcp_nodelay': True,

tests/test_protocol.py

@@ -23,6 +23,7 @@
     b'CONFIG cluster 0 138\r\n1\nhost|ip|port host||port\n\r\nEND\r\n',
 ]
 
+
 @patch('django_elasticache.cluster_utils.Telnet')
 def test_happy_path(Telnet):
     client = Telnet.return_value
@@ -74,4 +75,3 @@ def test_ubuntu_protocol(Telnet):
         call(b'version\n'),
         call(b'config get cluster\n'),
     ])
-