pylint: upgrade to 1.3.1

third_party/logilab/common/changelog.py

Index: third_party/logilab/common/changelog.py
===================================================================
--- third_party/logilab/common/changelog.py	(revision 292986)
+++ third_party/logilab/common/changelog.py	(working copy)
@@ -49,6 +49,8 @@
 import sys
 from stat import S_IWRITE
 
+from six import string_types
+
 BULLET = '*'
 SUBBULLET = '-'
 INDENT = ' ' * 4
@@ -64,7 +66,7 @@
     correctly printing it as X.Y.Z
     """
     def __new__(cls, versionstr):
-        if isinstance(versionstr, basestring):
+        if isinstance(versionstr, string_types):
             versionstr = versionstr.strip(' :') # XXX (syt) duh?
             parsed = cls.parse(versionstr)
         else:
@@ -76,7 +78,7 @@
         versionstr = versionstr.strip(' :')
         try:
             return [int(i) for i in versionstr.split('.')]
-        except ValueError, ex:
+        except ValueError as ex:
             raise ValueError("invalid literal for version '%s' (%s)"%(versionstr, ex))
 
     def __str__(self):