Python - Assert a text field that should not exist in the page

Hello I am new in using selenium webdriver and I am trying to create a test script using selenium webdriver in python and I am trying to check if a certain text field is not existing in the page.

Here is the code that I have created to check if the text field is blank or empty:

self.assertEqual("", driver.find_element_by_xpath("//div[5]/div"))

Using this test script gives me an error. Please help me with the correct syntax or method that I should use. Thanks in advance.