How do you run example code snippets with html output from gae?

Question

The following code comes from here. How am I supposed to see the results? Can I use the GAE interactive console somehow, or do I need to create a whole app with an app.yaml etc and run it in the gae launcher? I am particularly interested in snippets with html.

import datetime

from google.appengine.ext import webapp

class MyRequestHandler(webapp.RequestHandler):
    def get(self):
        self.response.out.write("<html><body>")
        self.response.out.write("<p>Welcome to the Internet!</p>")
        self.response.out.write("</body></html>")

        expires_date = datetime.datetime.utcnow() + datetime.timedelta(365)
        expires_str = expires_date.strftime("%d %b %Y %H:%M:%S GMT")
        self.response.headers.add_header("Expires", expires_str)

Daniel Roseman · Accepted Answer · 2012-09-15 21:02:29Z

1

You're supposed to run it in the development server. You see the results in your browser.

answered Sep 15, 2012 at 21:02

Daniel Roseman

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5 Comments

zerowords Over a year ago

Ok, I did as you suggested. Now can you tell me what the last line in the example code does because I don't see it in the html output(self.response.headers.add_header("Expires", expires_str))?

Daniel Roseman Over a year ago

Seems to be adding an Expires header to the HTTP response to tell the browser how long to cache it for.

zerowords Over a year ago

I assumed anything like that would have to show in the raw page output, but all I see is the following. <html><body><p>Welcome to the Internet!</p></body></html> A puzzle to me.

Paul Collingwood Over a year ago

Get chrome and press Crtl shift and i and you will get a console that will allow you to inspect the header s of that page, which is where the info is, not in the web page itself. developers.google.com/chrome-developer-tools/docs/…

zerowords Over a year ago

Paul, Thanks for that link etc. On my Mac I use Cmd Option I (and btw, Cmd Shift I seems to create an email message of the html page). I still cannot locate that Expires header business in the developer console. But there is such a wealth of info there. I guess I need to find a video or some docs to use those developer tools better.

Hans Then · Accepted Answer · 2012-09-15 21:02:33Z

0

Have you installed the development appserver?

answered Sep 15, 2012 at 21:02

Hans Then

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