.. -*- coding: utf-8 -*-

Ticket #88914 sre_constants.error: unexpected end of regular expression
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:type: bug
:state: validation pending

example.py::

""" example """ import struct PACKED = struct.pack('!i', 0)

pylint example.py::

Traceback (most recent call last): File "/usr/bin/pylint", line 4, in <module>
lint.Run(sys.argv[1:]) File "/usr/lib/pymodules/python2.6/pylint/lint.py", line
879, in __init__ linter.check(args) File
"/usr/lib/pymodules/python2.6/pylint/lint.py", line 502, in check
self.check_astng_module(astng, walker, rawcheckers) File
"/usr/lib/pymodules/python2.6/pylint/lint.py", line 574, in check_astng_module
walker.walk(astng) File "/usr/lib/pymodules/python2.6/pylint/utils.py", line
528, in walk self.walk(child) File
"/usr/lib/pymodules/python2.6/pylint/utils.py", line 528, in walk
self.walk(child) File "/usr/lib/pymodules/python2.6/pylint/utils.py", line 528,
in walk self.walk(child) File "/usr/lib/pymodules/python2.6/pylint/utils.py",
line 525, in walk cb(astng) File
"/usr/lib/pymodules/python2.6/pylint/checkers/typecheck.py", line 138, in
visit_getattr if re.match(pattern, node.attrname): File
"/usr/lib/python2.6/re.py", line 137, in match return _compile(pattern,
flags).match(string) File "/usr/lib/python2.6/re.py", line 245, in _compile
raise error, v # invalid expression sre_constants.error: unexpected end of
regular expression

Comments ::

  On 2012/02/20 14:33 - sthenault wrote :
  I don't reproduce this. Isn't it rather a pb with a bad value for
  generated-members in your pylintrc (which had been turned into regexp in pylint
  0.24)
  On 2012/05/17 22:54 - anon wrote :
  I am getting the same error. Pylint does not seem to be handling character
  classes ('[') in regular expressions very well.
  
  I'm using the following option:
  --generated-members=objects,DoesNotExist,delay,retry,"[a-zA-Z]+_set"
  
  typecheck.py contains the following comments: # generated_members may containt
  regular expressions # (surrounded by quote `"` and followed by a comma `,`) #
  REQUEST,aq_parent,"[a-zA-Z]+_set{1,2}"' => # ('REQUEST', 'aq_parent',
  '[a-zA-Z]+_set{1,2}')
  
  I've tried with and without quotes, but it always dies on the '[' character
  On 2012/05/17 23:18 - pimperish wrote :
  me again...no longer anonymous. The original ticket creator (at least I think
  it's the same "Simon") posted a fix here:
  
  [http://stackoverflow.com/questions/115977/using-pylint-with-
  django#comment9254297_4162971][1]
  
  I went ahead and created a patch, but I dunno the best way to submit it. So I'll
  just post it here:
  
  `
  
  
  
  diff -r 5432e78e7aec checkers/typecheck.py
  
  --- a/checkers/typecheck.py Tue May 15 14:52:44 2012 +0200
  
  +++ b/checkers/typecheck.py Thu May 17 14:08:24 2012 -0700
  
  @@ -132,6 +132,7 @@
  
  if isinstance(self.config.generated_members, str):
  
  gen = shlex.shlex(self.config.generated_members)
  
  gen.whitespace += ','
  
  + gen.wordchars += '[]-+'
  
  self.config.generated_members = tuple(tok.strip('"') for tok in gen)
  
  for pattern in self.config.generated_members:
  
  # attribute is marked as generated, stop here
  
  `
  
  [1]: http://stackoverflow.com/questions/115977/using-pylint-with-
  django#comment9254297_4162971
  > On 2012/05/21 14:06 - sthenault wrote :
  > thx, I was not aware of this, and will include the patch right now