smtp.py 文件源码

def __init__(self, host=None, port=None, username=None, password=None,
                 use_tls=None, fail_silently=False, **kwargs):
        super(EmailBackend, self).__init__(fail_silently=fail_silently)
        self.host = host or settings.EMAIL_HOST
        self.port = port or settings.EMAIL_PORT
        if username is None:
            self.username = settings.EMAIL_HOST_USER
        else:
            self.username = username
        if password is None:
            self.password = settings.EMAIL_HOST_PASSWORD
        else:
            self.password = password
        if use_tls is None:
            self.use_tls = settings.EMAIL_USE_TLS
        else:
            self.use_tls = use_tls
        self.connection = None
        self._lock = threading.RLock()