pylint #88914 sre_constants.error: unexpected end of regular expression [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
prioritynormal
typebug
done in<not specified>
load left0.000
closed by#8752260a4f41 fix crash when using set in regexp for --generated-members option. Closes #88914

Workflow history

from state (4)to statecommentdateUser
donevalidation pending2013/04/17 19:31 UTCsthenault
opendone2013/04/17 19:31 UTCsthenault
waiting feedbackopen2013/04/17 19:31 UTCsthenault
openwaiting feedback2012/02/20 13:33 UTCsthenault

Comments

  • 2012/02/20 13:33, written by sthenault

    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)

  • 2012/05/17 20:54, written by anon

    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

  • 2012/05/17 21:18, written by pimperish

    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

    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
    • 2012/05/21 12:06, written by sthenault

      thx, I was not aware of this, and will include the patch right now

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