mail.py 文件源码

def __init__(self, *args, **kwargs):
        super(SendgridBackend, self).__init__(*args, **kwargs)

        if "api_key" in kwargs:
            self.sg = sendgrid.SendGridAPIClient(api_key=kwargs["api_key"])
        elif hasattr(settings, "SENDGRID_API_KEY") and settings.SENDGRID_API_KEY:
            self.sg = sendgrid.SendGridAPIClient(api_key=settings.SENDGRID_API_KEY)
        else:
            raise ImproperlyConfigured("settings.py must contain a value for SENDGRID_API_KEY.  " +
                                       "You may also pass a value to the api_key argument (optional).")

        sandbox_mode_in_debug = True
        if hasattr(settings, "SENDGRID_SANDBOX_MODE_IN_DEBUG"):
            sandbox_mode_in_debug = settings.SENDGRID_SANDBOX_MODE_IN_DEBUG

        self.sandbox_mode = settings.DEBUG and sandbox_mode_in_debug

        if self.sandbox_mode:
            warnings.warn("Sendgrid email backend is in sandbox mode!  Emails will not be delivered.")

        track_email = True
        if hasattr(settings, "SENDGRID_TRACK_EMAIL_OPENS"):
            track_email = settings.SENDGRID_TRACK_EMAIL_OPENS

        self.track_email = track_email