unboundlocalerror in xtracebackexc on syntaxerror

[kingarrrt]

188 def format_exception(self):
--> 189     return self._format_lines(self._format_exception())
    190
    191 def print_tb(self):
  File ".venv/py27/lib/python2.7/site-packages/xtraceback/xtraceback.py", line 177, in XTraceback._format_exception
    self = <xtraceback.xtraceback.XTraceback object at 0x7f84fc7e87d0>
    175 lines = []
    176 for exc in self.exceptions:
--> 177     lines.extend(exc.format_exception())
            exc = <xtraceback.xtracebackexc.XTracebackExc object at 0x7f84fc7...
            lines = []
    178 return lines
    179
  File ".venv/py27/lib/python2.7/site-packages/xtraceback/xtracebackexc.py", line 119, in XTracebackExc.format_exception
    self = <xtraceback.xtracebackexc.XTracebackExc object at 0x7f84fc7e8890>
    116 lines = list(self.format_tb())
    117 if lines:
    118     lines.insert(0, "Traceback (most recent call last):\n")
--> 119 lines.extend(self.format_exception_only())
        lines = [
            'Traceback (most recent call last):\n',
            '  File "<stdlib>/unittest/case.py", line 329, in TestCase.run\n    self = <pico.test.unit.query.test_kdbquery.TestKdbConnection testMethod=t...\n    result = <nose.result.TextTestResult run=2 errors=0 failures=0>\n     327 else:\n     328     try:\n---> 329         testMethod()\n                 orig_result = <nose.result.TextTestResult run=2 errors=0 fai...\n                 success = False\n                 testMethod = <bound method TestKdbConnection.test_execute of...\n     330     except KeyboardInterrupt:\n     331         raise\n',
            '  File "pico/test/unit/query/test_kdbquery.py", line 57, in TestKdbConnection.test_execute\n    self = <pico.test.unit.query.test_kdbquery.TestKdbConnection testMethod=t...\n      55 with mock.patch.object(conn._conn, "__call__",\n      56                        return_value=mock_result,\n----> 57                        autospec=True) as patch:\n                                conn = <pico.query.kdbquery.KdbConnection obj...\n                                pool = <Mock id=\'140209148528912\'>\n      58     with conn:\n      59         result = conn(query="select 1")\n',
            '  File ".venv/py27/lib/python2.7/site-packages/mock.py", line 1349, in _patch.__enter__\n    self = <mock._patch object at 0x7f84fc7e8250>\n    1347 \n    1348     new = create_autospec(autospec, spec_set=spec_set,\n--> 1349                           _name=self.attribute, **kwargs)\n                                   autospec = <bound method Mock.__call__ of ...\n                                   kwargs = {\n                                       \'return_value\': <MagicMock spec=\'QTable\' id=\'140209149632080\'>,\n                                       }\n                                   local = False\n                                   new = sentinel.DEFAULT\n                                   original = <bound method Mock.__call__ of ...\n                                   spec_set = False\n    1350 elif kwargs:\n    1351     # can\'t set keyword args when we aren\'t creating the mock\n',
            '  File ".venv/py27/lib/python2.7/site-packages/mock.py", line 2241, in create_autospec\n    spec = <bound method Mock.__call__ of <Mock spec=\'QConnection\' id=\'140209...\n    spec_set = False\n    instance = False\n    _name = \'__call__\'\n    **kwargs = {\'spec\': <function __call__ at 0x7f85039c85f0>}\n    2239     mock._mock_children[entry] = new\n    2240     skipfirst = _must_skip(spec, entry, is_type)\n--> 2241     _check_signature(original, new, skipfirst=skipfirst)\n             Klass = <class \'mock.MagicMock\'>\n             _kwargs = {\n                 \'return_value\': <MagicMock spec=\'QTable\' id=\'140209149632080\'>,\n                 \'spec\': <bound method Mock.__call__ of <Mock spec=\'QConnection\' id=\'140209148883088\'>>,\n                 }\n             _new_name = \'\'\n             entry = \'im_func\'\n             is_type = False\n             mock = <function __call__ at 0x7f84fc845410>\n             new = <MagicMock name=\'__call__.im_func\' spec=\'function\' id=\'140...\n             original = <function __call__ at 0x7f85039c85f0>\n             parent = <MagicMock name=\'__call__\' spec=\'instancemethod\' id=\'14...\n             skipfirst = False\n    2242 \n    2243 # so functions created with _set_signature become instance attributes,\n',
            '  File ".venv/py27/lib/python2.7/site-packages/mock.py", line 212, in _check_signature\n    func = <function __call__ at 0x7f85039c85f0>\n    mock = <MagicMock name=\'__call__.im_func\' spec=\'function\' id=\'14020914856...\n    skipfirst = False\n    instance = False\n     210 # unfortunately even not in the first place\n     211 src = "lambda _mock_self, %s: None" % signature\n---> 212 checksig = eval(src, {})\n         result = (\n             \'_mock_self, *args, **kwargs\', <function __call__ at 0x7f85039c85f0>,\n             )\n         signature = \'_mock_self, *args, **kwargs\'\n         src = \'lambda _mock_self, _mock_self, *args, **kwargs: None\'\n     213 _copy_func_details(func, checksig)\n     214 type(mock)._mock_check_sig = checksig\n',
            ]
    120 return lines
  File ".venv/py27/lib/python2.7/site-packages/xtraceback/xtracebackexc.py", line 111, in XTracebackExc.format_exception_only
    self = <xtraceback.xtracebackexc.XTracebackExc object at 0x7f84fc7e8890>
    109     stype = str(self.etype)
    110 lines.append("%s%s\n" % (stype,
--> 111                          value_str and ": %s" % value_str or ""))
                                 lines = []
                                 stype = 'SyntaxError'
    112
    113 return lines
UnboundLocalError: local variable 'value_str' referenced before assignment