Merge "Update pylint to work with python 3"

.gitignore

@@ -16,3 +16,7 @@ build
 dist
 cinderclient/versioninfo
 python_cinderclient.egg-info
+
+# pylint files
+tools/lintstack.head.py
+tools/pylint_exceptions

cinderclient/client.py

@@ -69,7 +69,7 @@ REQ_ID_HEADER = 'X-OpenStack-Request-ID'
 # tell keystoneclient that we can ignore the /v1|v2/{project_id} component of
 # the service catalog when doing discovery lookups
 for svc in ('volume', 'volumev2', 'volumev3'):
-    discover.add_catalog_discover_hack(svc, re.compile('/v[12]/\w+/?$'), '/')
+    discover.add_catalog_discover_hack(svc, re.compile(r'/v[12]/\w+/?$'), '/')
 
 
 def get_server_version(url):

tools/lintstack.py

@@ -16,8 +16,6 @@
 
 """pylint error checking."""
 
-from __future__ import print_function
-
 import json
 import re
 import sys
@@ -70,6 +68,8 @@ class LintOutput(object):
     @classmethod
     def from_line(cls, line):
         m = re.search(r"(\S+):(\d+): \[(\S+)(, \S+)?] (.*)", line)
+        if m is None:
+            return None
         matched = m.groups()
         filename, lineno, code, message = (matched[0], int(matched[1]),
                                            matched[2], matched[-1])
@@ -83,13 +83,15 @@ class LintOutput(object):
 
     @classmethod
     def from_msg_to_dict(cls, msg):
-        """From the output of pylint msg, to a dict, where each key
+        """Convert pylint output to a dict.
+
+        From the output of pylint msg, to a dict, where each key
         is a unique error identifier, value is a list of LintOutput
         """
         result = {}
         for line in msg.splitlines():
             obj = cls.from_line(line)
-            if obj.is_ignored():
+            if obj is None or obj.is_ignored():
                 continue
             key = obj.key()
             if key not in result:
@@ -147,8 +149,10 @@ class ErrorKeys(object):
 
 def run_pylint():
     buff = StringIO()
-    reporter = text.ParseableTextReporter(output=buff)
-    args = ["--include-ids=y", "-E", "cinderclient"]
+    reporter = text.TextReporter(output=buff)
+    args = [
+        "--msg-template='{path}:{line}: [{msg_id}({symbol}), {obj}] {msg}'",
+        "-E", "cinderclient"]
     lint.Run(args, reporter=reporter, exit=False)
     val = buff.getvalue()
     buff.close()

tox.ini

@@ -33,7 +33,7 @@ basepython = python3
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
   -r{toxinidir}/requirements.txt
-       pylint==0.26.0
+       pylint==1.9.1
 commands = bash tools/lintstack.sh
 whitelist_externals = bash