GAE app main.py request handlers
Question: I have been following a GAE/Jinja2 tutorial, and thankfully it incorporates a
feature I have been struggling with within GAE, which is how to link the html
pages using the main.py file so they can be edited using Jinja2. The code for
main.py is below.

    
    
    import webapp2
    import logging
    import jinja2
    import os
    
    
    jinja_environment = jinja2.Environment(
        loader = jinja2.FileSystemLoader(os.path.dirname(__file__) + "/templates"))
    
    class MainPage(webapp2.RequestHandler):
        def get(self):
            template_values = {
                'welcome':'Welcome to my website!',
    
    
            }
            template = jinja_environment.get_template('homepage.html')
            self.response.write(template.render(template_values))
    
    class FeedbackPage(webapp2.RequestHandler):
        def get(self):
            feedbackvalues = {
    
            }
            template = jinja_environment.get_template('feedbackform.html')
    
    class TopFinishers(webapp2.RequestHandler):
        def get(self):
            template = jinja_environment.get_template('Top10Finishers.html')
    
    class Belts(webapp2.RequestHandler):
        def get(self):
            template = jinja_environment.get_template('WWETitlesBelt.html')
    
    class TopWrestlers(webapp2.RequestHandler):
        def get(self):
            template = jinja_environment.get_template('Top10Wrestlers.html')
    
    
    app = webapp2.WSGIApplication([('/',MainPage),   ('/feedbackform.html',FeedbackPage),
    ('/Top10Finishers.html',TopFinishers),
    ('/WWETitlesBelt.html',Belts),
                                  ],
                                  debug=True)
    

Within the tutorial I followed the procedure for adding more request handlers
and then instantiating them in the app object. However, when I load the page
by clicking on the button on the page it takes me to a blank page. When I
click to go to 'Top 10 Finishers' it will successfully take me to the page as
the URL is 'localhost:etc/Top10Finishers.html.

However, the content is not showing, do I need to add any URL handlers within
the app.yaml file?

    
    
    application: 205semestertwo
    version: 1
    runtime: python27
    api_version: 1
    threadsafe: yes
    
        handlers:
    
        - url: /css
          static_dir: styling
    
        - url: .* 
          script: main.app
    
        libraries:
        - name: webapp2
          version: "2.5.2"
        - name: jinja2
          version: "2.6"
    

My question is 'What is causing this error'? As the console logs do not appear
to be giving me any error or insight


Answer: You are successfully retrieving the new template on each handler, but forgot
to write it on the response, the same way you did for your main handler:

    
    
    class TopFinishers(webapp2.RequestHandler):
        def get(self):
            values = {}
            template = jinja_environment.get_template('Top10Finishers.html')
            self.response.write(template.render(values))
    

This applies to all your handlers.

