New submission from David Halter: Hi! I'm the developer of Jedi: https://github.com/davidhalter/jedi, which is an auto-completion library. I try to support Python 2.5-3.2. The bug just appears in Python 3.2.
Parsing string literals with literal_eval works normally without a problem, but in this certain constellation, it raises a SystemError (instead of a SyntaxError). The error line is simple: literal_eval(r"'\U'") But: It only raises the error in that particular place: https://github.com/davidhalter/jedi/blob/master/parsing.py#L157 To try and test it: git clone git://github.com/davidhalter/jedi.git cd jedi # uncomment the line after TODO in parsing.Scope.add_docstr python3 test/run.py array The error message: Traceback (most recent call last): File "./run.py", line 51, in run_definition_test result = defs(line_nr, len(line)) File "./run.py", line 49, in defs return set(functions.get_definitions(source, line_nr, indent, path)) File "./functions.py", line 253, in get_definitions scopes = _prepare_goto(source, pos, source_path, f, goto_path) File "./functions.py", line 227, in _prepare_goto scopes = evaluate.follow_statement(stmt) File "./helpers.py", line 23, in __call__ if self.push_stmt(stmt): File "./helpers.py", line 31, in push_stmt self.current = RecursionNode(stmt, self.current) File "./helpers.py", line 75, in __init__ or (self.script == builtin.Builtin.scope) File "./builtin.py", line 408, in scope return self._builtins.parser.module File "./builtin.py", line 42, in parser self._load_module() File "./builtin.py", line 50, in _load_module self._parser = parsing.PyFuzzyParser(source, self.path or self.name) File "./parsing.py", line 1047, in __init__ self.parse() File "./parsing.py", line 1600, in parse stmt, tok = self._parse_statement(self.current) File "./parsing.py", line 1386, in _parse_statement self.scope.add_docstr(self.last_token[1]) File "./parsing.py", line 157, in add_docstr literal_eval(r"'\U'") File "/usr/lib/python3.2/ast.py", line 48, in literal_eval node_or_string = parse(node_or_string, mode='eval') File "/usr/lib/python3.2/ast.py", line 36, in parse return compile(source, filename, mode, PyCF_ONLY_AST) SystemError: ../Objects/tupleobject.c:126: bad argument to internal function Cheers! David ---------- messages: 169687 nosy: davidhalter priority: normal severity: normal status: open title: literal_eval raises SystemError instead of SyntaxError, because of illegal escape sequence versions: Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue15846> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
