How to get current domain name with Python/GAE?

Current url is

http://myapp.appspot.com/something/<user-id>

or

http://127.0.0.1:8080/something/<user-id>

How in my python code I can get http://myapp.appspot.com/ or http://127.0.0.1:8080/? This is need for dynamic links generation, for ex., to http://myapp.appspo开发者_Go百科t.com/somethingelse.

self.request.path returns the whole path.

self.request.host_url

I think you want app_identity.get_default_version_hostname().

If an app is served from a custom domain, it may be necessary to retrieve the entire hostname component. You can do this using the app_identity.get_default_version_hostname() method.

This code: logging.info(app_identity.get_default_version_hostname())

prints localhost:8080 on the development server.

If self.request.path returns the whole path, can't you just do:

import urlparse

def get_domain(url):
    return urlparse.urlparse(url).netloc

>>> get_domain("http://myapp.appspot.com/something/")
'myapp.appspot.com'