diff --git a/hiboo/account/login.py b/hiboo/account/login.py
index 37fefe095e65b0c9340d53c2cb3b8ac17faa9251..316189eb545682dca2bf8e06b88bec27b8e01179 100644
--- a/hiboo/account/login.py
+++ b/hiboo/account/login.py
@@ -6,7 +6,6 @@ from flask import session
 import datetime
 import flask_login
 import flask
-import sys
 
 @blueprint.route("/signin", methods=["GET", "POST"])
 def signin():