File user_login.patch of Package trytond

diff -ruN a/user.py b/user.py
--- trytond/res/user.py	2017-06-07 11:24:56.101578719 +0100
+++ trytond/res/user.py	2017-06-07 11:24:15.136154818 +0100
@@ -495,7 +495,6 @@
         Return user id if password matches
         '''
         LoginAttempt = Pool().get('res.user.login.attempt')
-        time.sleep(2 ** LoginAttempt.count(login) - 1)
         for method in config.get(
                 'session', 'authentications', default='password').split(','):
             try:
@@ -505,9 +504,11 @@
                 continue
             user_id = func(login, parameters)
             if user_id:
-                LoginAttempt.remove(login)
                 return user_id
-        LoginAttempt.add(login)
+            else:
+                logger.info('Invalid login from : %s', login)
+                time.sleep(3)
+
 
     @classmethod
     def _login_password(cls, login, parameters):