webapp2 can also be used outside of App Engine as a general purpose web framework, as it has these features:
It won’t support App Engine services, but if you like webapp, why not use it in other servers as well? Here we’ll describe how to do this.
If you want to use webapp2 on App Engine, read the Quick start tutorial instead.
If you don’t have a package installer in your system yet (like pip or easy_install), install one. See Installing packages.
If you don’t have virtualenv installed in your system yet, install it. See Installing virtualenv.
Create a directory hellowebapp2 for your new app. It is where you will setup the environment and create your application.
Type this to install them using the active virtual environment (see Installing virtualenv):
$ pip install WebOb $ pip install Paste $ pip install webapp2
Or, using easy_install:
$ easy_install WebOb $ easy_install Paste $ easy_install webapp2
Now the environment is ready for your first app.
Create a file main.py inside your hellowebapp2 directory and define a handler to display a ‘Hello, webapp2!’ message. This will be our bootstrap file:
import webapp2 class HelloWebapp2(webapp2.RequestHandler): def get(self): self.response.write('Hello, webapp2!') app = webapp2.WSGIApplication([ ('/', HelloWebapp2), ], debug=True) def main(): from paste import httpserver httpserver.serve(app, host='127.0.0.1', port='8080') if __name__ == '__main__': main()