my script for login repeating again and again for as it need to stop after taking all datas from exc

def login(password):
# Valid password
TestedApps.sac.Run(1, True)
delay(5000)

# Find password input field and enter the password
password_input = Sys.Process('sac').Find('Name', 'QtObject("g_password_lineedit")', 10);
password_input.Keys(password)

# Find and click the login button
login_button = Sys.Process("sac").QtObject("MainWindow").QtObject("g_main_widget").QtObject("g_screens_frame").QtObject("LoginScreen").QtObject("frame").WaitQtObject("g_login_button",6000);
login_button.Click()
delay(5000)
log_out = Aliases.sac.MainWindow2.g_main_widget.g_toolbar_frame.g_right_toolbar_frame.ToolButton;
delay(5000)
log_out.ClickButton()
Runner.Stop()  

for this code i wantg to stop after login as it take all input from excel but its running again so i used runner.stop which making test cases fail please suggest me the trick