get C2DM auth token without passing your password?

I'm working on a C2DM app using appengine on Python. After several hours of wondering why my "send message" was giving me an error 401 I discovered that my auth token was wrong. I've looked at several examples a开发者_开发知识库nd noticed that most people retrieve the token by passing the email address and password as request parameters example:

username = self.request.get('username') 
        password = self.request.get('password') 
        values = {'accountType' : 'HOSTED', 
                  'Email' : username, 
                  'Passwd' : password, 
                  'source' : 'shiprack-brain-1', 
                  'service' : 'ac2dm'} 
        data = urllib.urlencode(values) 
        request = urllib2.Request('https://www.google.com/accounts/ 
ClientLogin', data) 
        response = urllib2.urlopen(request) 

Is there a way to get the Auth Token needed for C2DM messaging without passing your gmail password?

No.

It's recommended to use a separate account for C2DM instead of using the account used for email and other services.