Bump pycodestyle to 2.6.0

This brings in a couple of new checks, and
fixes E741 errors.

Change-Id: I04ad07cd4ea1055c0244e7444d25da6a920c530e

os_brick/initiator/connectors/hgst.py

@@ -77,8 +77,8 @@ class HGSTConnector(base.BaseLinuxConnector):
         for host in domain:
             try:
                 ip = socket.gethostbyname(host)
-                for l in nets:
+                for line in nets:
-                    x = l.strip()
+                    x = line.strip()
                     if x.startswith("inet %s/" % ip):
                         return host
             except socket.error:

os_brick/initiator/connectors/iscsi.py

@@ -970,9 +970,9 @@ class ISCSIConnector(base.BaseLinuxConnector, base_iscsi.BaseISCSIConnector):
             lines, _err = self._execute('cat', file_path, run_as_root=True,
                                         root_helper=self._root_helper)
 
-            for l in lines.split('\n'):
+            for line in lines.split('\n'):
-                if l.startswith('InitiatorName='):
+                if line.startswith('InitiatorName='):
-                    return l[l.index('=') + 1:].strip()
+                    return line[line.index('=') + 1:].strip()
         except putils.ProcessExecutionError:
             LOG.warning("Could not find the iSCSI Initiator File %s",
                         file_path)

os_brick/remotefs/remotefs.py

@@ -88,8 +88,8 @@ class RemoteFsClient(executor.Executor):
         """
         with open("/proc/mounts", "r") as mounts:
             # Remove empty lines and split lines by whitespace
-            lines = [l.split() for l in mounts.read().splitlines()
+            lines = [line.split() for line in mounts.read().splitlines()
-                     if l.strip()]
+                     if line.strip()]
 
             # Return {mountpoint: mountdevice}.  Fields 2nd and 1st as per
             # http://man7.org/linux/man-pages/man5/fstab.5.html

test-requirements.txt

@@ -11,3 +11,4 @@ testtools>=2.2.0 # MIT
 stestr>=1.0.0 # Apache-2.0
 oslo.vmware>=2.17.0 # Apache-2.0
 castellan>=1.3.0 # Apache-2.0
+pycodestyle==2.6.0 # MIT