outlook does not send the email I want to send. why?

Question

whenever I run this function I can see only the print result of time and date. the lines below do not get executed nor they throw any error. what is the issue? here is my code.

import win32com.client as win32

def send_email_notification(location):
    print(location)
    # Setting up Time variables
    now = datetime.datetime.now()
    date_now = now.strftime("%Y%m%d")
    time_now = now.strftime("%H_%M_%S")
    print(now,date_now,time_now)


    outlook = win32.Dispatch('Outlook.Application')
    mail = outlook.CreateItem(0)
    mail.Display()
    mail.To = '''[email protected]'''
    mail.Subject = 'sub'
    mail.Body = f"body {time_now}. Please see {location}"


    mail.Send()