Thanks Chris and Peter. I already went further along. No more issues so far. 2013年8月19日 Peter Otten <__peter__ at web.de> > Tobias Müller wrote: >> > I'm facing an issue with NodeTransformer, a tool used for Python AST > > manipulations. > > > > Last week I posted on stackoverflow.com, but there are no responses yet. > > Maybe someone reading the mailing list can have a look and leave me a > > response here or over there? > > > > > http://stackoverflow.com/questions/18275662/python-nodetransformer-how-to- > remove-nodes >> As Chris says, you are overriding too much of the generic behaviour. Here > is > a working demo: >> import ast >> class MyTransformer(ast.NodeTransformer): > def visit_For(self, node): > """ > For nodes: replace with nothing > """ > print("removing a For node") > return None >>> source = """ > l = [0, 1, 2, 3] >> total = 0 >> for i in l: > total += i >> print(total) > """ >> transformer = MyTransformer() > module = ast.parse(source) > transformer.visit(module) > codeobj = compile(module, '<string>', 'exec') > exec(codeobj) >>> -- > http://mail.python.org/mailman/listinfo/python-list >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-list/attachments/20130821/6221c592/attachment.html>