Start implementing an algorithm for actually evaluating the parser tree.

jedi/parser/__init__.py

@@ -57,7 +57,8 @@ class Parser(object):
         # and only if the refactor method's write parameter was True.
         logger = logging.getLogger("RefactoringTool")
         d = Driver(pytree.python_grammar, convert=pytree.convert, logger=logger)
-        self.module = d.parse_string(source)
+        print(repr(source))
+        self.module = d.parse_string(source).get_parent_until()
 
     def __init__old__(self, source, module_path=None, no_docstr=False,
                       tokenizer=None, top_module=None):