pylint #37640 KeyError: 'RP0401' [resolved]

Hello, I'm forwarding here the Debian bug 591670

$ apt-cache policy python-docutils | grep Installed
 Installed: 0.7-2

$ pylint docutils [snip - large amounts of junk]
************* Module docutils.parsers.rst.languages.de
C: 19: Invalid name "directives" (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$)
W: 72: String statement has no effect
C: 74: Invalid name "roles" (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$)
W: 96: String statement has no effect
R:157:Translator: Abstract class not referenced
R:123:LaTeXTranslator: Abstract class not referenced
R:838:LaTeXTranslator: Abstract class not referenced
R: 14:Parser: Abstract class is only referenced 1 times
R: 89:_ElementInterfaceWrapper: Interface not implemented
Traceback (most recent call last):
 File "/usr/bin/pylint", line 4, in 
   lint.Run(sys.argv[1:])
 File "/usr/lib/pymodules/python2.6/pylint/lint.py", line 856, in __init__
   linter.check(args)
 File "/usr/lib/pymodules/python2.6/pylint/lint.py", line 494, in check
   checker.close()
 File "/usr/lib/pymodules/python2.6/pylint/checkers/imports.py", line 218, in close
   self.add_message('RP0401', args=' -> '.join(cycle))
 File "/usr/lib/pymodules/python2.6/pylint/checkers/__init__.py", line 92, in add_message
   self.linter.add_message(msg_id, line, node, args)
 File "/usr/lib/pymodules/python2.6/pylint/utils.py", line 262, in add_message
   msg = self._messages[msgid].msg
KeyError: 'RP0401'
prioritynormal
typebug
done in0.21.2
load left0.000
closed by<not specified>