Bump version to 2.0.4

Author: grantjenks

sortedcontainers/__init__.py

@@ -67,8 +67,8 @@
 ]
 
 __title__ = 'sortedcontainers'
-__version__ = '2.0.3'
-__build__ = 0x020003
+__version__ = '2.0.4'
+__build__ = 0x020004
 __author__ = 'Grant Jenks'
 __license__ = 'Apache 2.0'
 __copyright__ = '2014-2018, Grant Jenks'

sortedcontainers/sorteddict.py

@@ -360,11 +360,13 @@ def values(self):
 
     if sys.hexversion < 0x03000000:
         def __make_raise_attributeerror(original, alternate):
+            # pylint: disable=no-self-argument
             message = (
                 'SortedDict.{original}() is not implemented.'
                 ' Use SortedDict.{alternate}() instead.'
             ).format(original=original, alternate=alternate)
             def method(self):
+                # pylint: disable=missing-docstring,unused-argument
                 raise AttributeError(message)
             method.__name__ = original
             method.__doc__ = message