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