So that part of it looks fine.
The question is does your code that initialises the globals
'globals': {
'uri_for' : webapp2.uri_for
},
ever get called when it goes through this path, and if it doesn't maybe
what is happening is webapp2 is now initialised (partly) in the 404 handler
and not completing this initialisation correctly.
Hence the error.
I have never used webapp or webapp2 or jinja so I have no personal
experience in this area, but the symptons really look like an incomplete
initialisation.
T
On Friday, January 17, 2014 12:28:41 PM UTC+8, Jeff Potter wrote:
>
> Below is the log data from the 404 error
>
> Traceback (most recent call last):
> File
> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>
> line 1529, in __call__ rv = self.router.dispatch(request, response)
> File
> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>
> line 1265, in default_dispatcher route, args, kwargs = rv =
> self.match(request)
> File
> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>
> line 1214, in default_matcher raise exc.HTTPNotFound()
> HTTPNotFound: The resource could not be found.
>
> Never gets out of the webapp2.py to start anything. Any idea on what needs
> to be done?
>
> On Thursday, January 16, 2014 3:41:39 PM UTC-8, timh wrote:
>>
>> Hi
>>
>> I would look at how you 404 handler is initialized and if it has
>> different imports/initialization phases to your regular handler.
>> My guess is something isn't being imported correctly.
>>
>> Are you using appengine_config.py for all your path setups and any global
>> init ?
>>
>> T
>>
>> On Friday, January 17, 2014 1:55:52 AM UTC+8, Jeff Potter wrote:
>>>
>>> I am not seeing any "deadline exceeded error" during the instance
>>> startup, but I was able to successfully reproduce this problem, steps below.
>>>
>>> 1. Make sure no server instances are started in GAE (shutdown any
>>> already running)
>>> 2. Go to a page that does not exist in the app (i.e.
>>> www.my-app.com/this-page-will-never-exist)
>>> 3. Returns a 'Error 404: The resource could not be found' as expected.
>>> Logs also show that this request "caused a new process to be started" as
>>> expected.
>>> 4. /taskqueue-send-mail/ is kicked off to send the admin an error email
>>> ('send_mail_developer': True in config.py)
>>> 5. Now go to any valid page on the app and I get "Error 500: 'uri_for'
>>> is undefiend"
>>>
>>> *If the first request (which starts a new server instance) is a valid
>>> page, then this error goes away.* I did the same steps above but
>>> between number 1 and 2 I went to a valid page. I then went to an invalid
>>> page and got the 404, but after that I did not get any 'uri_for' undefined
>>> error.
>>>
>>> Any ideas?
>>>
>>> Thanks,
>>> Jeff
>>>
>>> On Thursday, January 16, 2014 4:21:11 AM UTC-8, timh wrote:
>>>>
>>>> Check and see if you have had a deadline exceeded error during instance
>>>> startup, prior to the instance exhibiting this problem.
>>>>
>>>> T
>>>>
>>>> On Wednesday, January 15, 2014 11:06:55 PM UTC+8, Jeff Potter wrote:
>>>>>
>>>>> I am having this problem with coto-boilerplate right now. Stacktrace
>>>>> for the problem below. Stopping and starting a new instance fixes the
>>>>> problem.
>>>>>
>>>>> Traceback (most recent call last):
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>>>>>
>>>>> line 1529, in __call__ rv = self.router.dispatch(request, response)
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>>>>>
>>>>> line 1278, in default_dispatcher return route.handler_adapter(request,
>>>>> response)
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>>>>>
>>>>> line 1102, in __call__ return handler.dispatch()
>>>>> File
>>>>> "/base/data/home/apps/s~<site>/1-1.373006929445588669/boilerplate/lib/basehandler.py",
>>>>>
>>>>> line 88, in dispatch webapp2.RequestHandler.dispatch(self)
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>>>>>
>>>>> line 572, in dispatch return self.handle_exception(e, self.app.debug)
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py",
>>>>>
>>>>> line 570, in dispatch return method(*args, **kwargs)
>>>>> File
>>>>> "/base/data/home/apps/s~<site>/1-1.373006929445588669/boilerplate/handlers.py",
>>>>>
>>>>> line 1526, in get return self.render_template('home.html', **params)
>>>>> File
>>>>> "/base/data/home/apps/s~<site>/1-1.373006929445588669/boilerplate/lib/basehandler.py",
>>>>>
>>>>> line 320, in render_template
>>>>> self.response.write(self.jinja2.render_template(filename, **kwargs))
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2_extras/jinja2.py",
>>>>>
>>>>> line 158, in render_template return
>>>>> self.environment.get_template(_filename).render(**context)
>>>>> File
>>>>> "/base/data/home/runtimes/python27/python27_lib/versions/third_party/jinja2-2.6/jinja2/environment.py",
>>>>>
>>>>> line 894, in render return self.environment.handle_exception(exc_info,
>>>>> True)
>>>>> File "boilerplate/templates/home.html", line 1, in top-level template
>>>>> code {% extends base_layout %}
>>>>> File "boilerplate/templates/base.html", line 40, in top-level template
>>>>> code
>>>>> File "boilerplate/templates/home.html", line 6, in block "canonical"
>>>>> {% block canonical %}{{ uri_for("home") }}{% endblock %}
>>>>> UndefinedError: 'uri_for' is undefined
>>>>>
>>>>> uri_for is defined in basehandler.py like so
>>>>> def jinja2_factory(app):
>>>>> j = jinja2.Jinja2(app)
>>>>> j.environment.filters.update({
>>>>> # Set filters.
>>>>> # ...
>>>>> })
>>>>> j.environment.globals.update({
>>>>> # Set global variables.
>>>>> 'csrf_token': generate_csrf_token,
>>>>> 'uri_for': webapp2.uri_for,
>>>>> 'getattr': getattr,
>>>>> })
>>>>> j.environment.tests.update({
>>>>> # Set test.
>>>>> # ...
>>>>> })
>>>>> return j
>>>>>
>>>>> All the routes work perfectly fine until the instance gets into a
>>>>> funky state where no uri_for call works (seen it for other uris as well).
>>>>>
>>>>> any ideas?
>>>>>
>>>>> On Monday, July 16, 2012 12:34:35 AM UTC-7, Thomas Marban wrote:
>>>>>>
>>>>>>
>>>>>> Ever since including webapp2.uri_for in my webapp2_extras.jinja2
>>>>>> config via
>>>>>>
>>>>>> 'globals': {
>>>>>> 'uri_for' : webapp2.uri_for
>>>>>> },
>>>>>>
>>>>>> I'm getting an undefined error every time I change a python file and
>>>>>> load the app for the first time. It won't come up on subsequent
>>>>>> requests.
>>>>>> Also tried to inject it into globals via a Jinja2 factory but same
>>>>>> result.
>>>>>> Any hints?
>>>>>>
>>>>>> UndefinedError: 'uri_for' is undefined
>>>>>>
>>>>>>
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