gravatar.py 文件源码

def render(self, context):
        try:
            email = self.email.resolve(context)
        except template.VariableDoesNotExist:
            return ''

        default = "http://example.com/static/images/defaultavatar.jpg"
        size = 40

        gravatar_url = "http://www.gravatar.com/avatar/" + hashlib.md5(email.lower()).hexdigest() + "?"
        gravatar_url += urllib.urlencode({'d':default, 's':str(size)})

        return gravatar_url