Thanks, that fix works great. I followed the QuickStart instructions, substituting my pre-existing data model and adapting the steps to suit them.
What I have to say is, Wow!!! A few minutes and I have a cool looking page displaying one of my entities. Great work on this project - I am excited to have a way to interact with my database. I am a python newbie, so I am not sure how to share my data model between the web app and the other projects, but I'll figure it out. Thanks!! On Friday, December 11, 2015 at 11:50:12 PM UTC+1, Alessandro Molina wrote: > > Sadly that's a known issue, has already been fixed on Genshi and we are > only waiting a new release. > > Refer to > http://turbogears.readthedocs.org/en/latest/cookbook/upgrading.html#genshi-work-around-available-for-python3-4 > > for a quick fix > > On Fri, Dec 11, 2015 at 10:56 PM, Kay Pac <[email protected] > <javascript:>> wrote: > >> Hello everyone, >> >> I want to build a web interface to a database that I am populating with >> python and sqlalchemy. >> I am running windows 8, not windows 8.1 and python 3.4. I have used the >> pytho.org installer for python. >> >> after installing tg.devtools, generating the quickstart project and >> installing it as specified in the tutorial and running "gearbox serve >> --reload --debug" I get an exception when i try to load the root URL /. >> >> The exception page starts with: >> >> builtins.Exception >> >> Exception: Unhandled node type <class '_ast.NameConstant'> >> >> and then it has a massive traceback. It may not be a problem with >> turbogears but i don't know where else to start. >> it appears to throw the exception in "genshi" >> >> I know I probably haven't supplied information, but I am hoping someone >> has run into this. Here is the full exception traceback: >> >> builtins.Exception >> >> Exception: Unhandled node type <class '_ast.NameConstant'> >> Traceback *(most recent call last)* >> >> - File "D:\Python34\lib\site-packages\tg\wsgiapp.py", line *122*, in >> __call__ >> >> response = self.wrapped_dispatch(controller, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\appwrappers\errorpage.py", >> line *56*, in __call__ >> >> resp = self.next_handler(controller, environ, context) >> >> - File >> "D:\Python34\lib\site-packages\tg\appwrappers\transaction_manager.py", >> line *107*, in __call__ >> >> reraise(*exc_info) >> >> - File "D:\Python34\lib\site-packages\tg\_compat.py", line *81*, in >> reraise >> >> raise value >> >> - File >> "D:\Python34\lib\site-packages\tg\appwrappers\transaction_manager.py", >> line *83*, in __call__ >> >> response = self.next_handler(controller, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\appwrappers\caching.py", >> line *54*, in __call__ >> >> return self.next_handler(controller, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\appwrappers\session.py", >> line *71*, in __call__ >> >> response = self.next_handler(controller, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\appwrappers\identity.py", >> line *47*, in __call__ >> >> return self.next_handler(controller, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\appwrappers\i18n.py", line >> *71*, in __call__ >> >> return self.next_handler(controller, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\wsgiapp.py", line *295*, in >> dispatch >> >> return controller(environ, context) >> >> - File "d:\current2\python\tg\dict\dict\lib\base.py", line *27*, in >> __call__ >> >> return TGController.__call__(self, environ, context) >> >> - File "D:\Python34\lib\site-packages\tg\controllers\dispatcher.py", >> line *128*, in __call__ >> >> response = self._perform_call(context) >> >> - File "D:\Python34\lib\site-packages\tg\controllers\dispatcher.py", >> line *109*, in _perform_call >> >> r = self._call(func, params, remainder=remainder, context=context) >> >> - File >> "D:\Python34\lib\site-packages\tg\controllers\decoratedcontroller.py", >> line *127*, in _call >> >> response = self._render_response(context, controller, output) >> >> - File >> "D:\Python34\lib\site-packages\tg\controllers\decoratedcontroller.py", >> line *237*, in _render_response >> >> template_name=template_name, **render_params) >> >> - File "D:\Python34\lib\site-packages\tg\render.py", line *212*, in >> render >> >> kwargs['result'] = render_function(template_name, tg_vars, **kwargs) >> >> - File "D:\Python34\lib\site-packages\tg\renderers\genshi.py", line >> *212*, in __call__ >> >> ns_options=('doctype', 'method'), **kwargs) >> >> - File "D:\Python34\lib\site-packages\tg\render.py", line *278*, in >> cached_template >> >> return render_func() >> >> - File "D:\Python34\lib\site-packages\tg\renderers\genshi.py", line >> *208*, in render_template >> >> encoding=None) >> >> - File "D:\Python34\lib\site-packages\genshi\core.py", line *184*, in >> render >> >> return encode(generator, method=method, encoding=encoding, out=out) >> >> - File "D:\Python34\lib\site-packages\genshi\output.py", line *57*, >> in encode >> >> return _encode(''.join(list(iterator))) >> >> - File "D:\Python34\lib\site-packages\genshi\output.py", line *350*, >> in __call__ >> >> for kind, data, pos in stream: >> >> - File "D:\Python34\lib\site-packages\genshi\output.py", line *829*, >> in __call__ >> >> for kind, data, pos in stream: >> >> - File "D:\Python34\lib\site-packages\genshi\output.py", line *669*, >> in __call__ >> >> for kind, data, pos in stream: >> >> - File "D:\Python34\lib\site-packages\genshi\output.py", line *774*, >> in __call__ >> >> for kind, data, pos in chain(stream, [(None, None, None)]): >> >> - File "D:\Python34\lib\site-packages\genshi\output.py", line *594*, >> in __call__ >> >> for ev in stream: >> >> - File "D:\Python34\lib\site-packages\genshi\core.py", line *289*, in >> _ensure >> >> for event in stream: >> >> - File "D:\Python34\lib\site-packages\genshi\template\base.py", line >> *630*, in _include >> >> for event in tmpl.generate(ctxt, **vars): >> >> - File "D:\Python34\lib\site-packages\genshi\template\base.py", line >> *544*, in generate >> >> stream = self.stream >> >> - File "D:\Python34\lib\site-packages\genshi\template\base.py", line >> *454*, in stream >> >> self._stream = list(self._prepare(self._stream)) >> >> - File "D:\Python34\lib\site-packages\genshi\template\base.py", line >> *490*, in _prepare >> >> yield kind, (directives, list(substream)), pos >> >> - File "D:\Python34\lib\site-packages\genshi\template\base.py", line >> *490*, in _prepare >> >> yield kind, (directives, list(substream)), pos >> >> - File "D:\Python34\lib\site-packages\genshi\template\base.py", line >> *485*, in _prepare >> >> namespaces, pos) >> >> - File "D:\Python34\lib\site-packages\genshi\template\directives.py", >> line *397*, in attach >> >> namespaces, pos) >> >> - File "D:\Python34\lib\site-packages\genshi\template\directives.py", >> line *82*, in attach >> >> return cls(value, template, namespaces, *pos[1:]), stream >> >> - File "D:\Python34\lib\site-packages\genshi\template\directives.py", >> line *60*, in __init__ >> >> self.expr = self._parse_expr(value, template, lineno, offset) >> >> - File "D:\Python34\lib\site-packages\genshi\template\directives.py", >> line *109*, in _parse_expr >> >> lookup=template.lookup) or None >> >> - File "D:\Python34\lib\site-packages\genshi\template\eval.py", line >> *93*, in __init__ >> >> filename=filename, lineno=lineno, xform=xform) >> >> - File "D:\Python34\lib\site-packages\genshi\template\eval.py", line >> *463*, in _compile >> >> new_source = ASTCodeGenerator(tree).code >> >> - File "D:\Python34\lib\site-packages\genshi\template\astutil.py", >> line *43*, in __init__ >> >> self.visit(tree) >> >> - File "D:\Python34\lib\site-packages\genshi\template\astutil.py", >> line *91*, in visit >> >> ret = visitor(node) >> >> - File "D:\Python34\lib\site-packages\genshi\template\astutil.py", >> line *104*, in visit_Expression >> >> return self.visit(node.body) >> >> - File "D:\Python34\lib\site-packages\genshi\template\astutil.py", >> line *90*, in visit >> >> raise Exception('Unhandled node type %r' % type(node)) >> >> >> Exception: Unhandled node type <class '_ast.NameConstant'> >> >> The debugger caught an exception in your WSGI application. You can now >> look at the traceback which led to the error. >> >> To switch between the interactive traceback and the plaintext one, you >> can click on the "Traceback" headline. From the text traceback you can also >> create a paste of it. For code execution mouse-over the frame you want to >> debug and click on the console icon on the right side. >> >> You can execute arbitrary Python code in the stack frames and there are >> some extra helpers available for introspection: >> >> - dump() shows all variables in the frame >> - dump(obj) dumps all that's known about the object >> - ctx the context of the failed request >> >> *Backlash*, using the Werkzeug Debugger. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "TurboGears" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at http://groups.google.com/group/turbogears. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "TurboGears" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/turbogears. For more options, visit https://groups.google.com/d/optout.
