fix_oldstr_wrap.py 文件源码

def transform(self, node, results):
        import pdb
        pdb.set_trace()
        if node.type == token.STRING:
            touch_import_top(u'past.types', u'oldstr', node)
            if _literal_re.match(node.value):
                new = node.clone()
                # Strip any leading space or comments:
                # TODO: check: do we really want to do this?
                new.prefix = u''
                new.value = u'b' + new.value
                wrapped = wrap_in_fn_call("oldstr", [new], prefix=node.prefix)
                return wrapped