The problem is that you are trying to add the cookies with a different format than the selenium expects.
The python selenium api reference says that you have to insert the cookies with a dict like that
driver.add_cookie({'name' : 'foo', 'value' : 'bar'})
So you have to adapt your loop to use a key,value format
for cookie in cookies: driver.add_cookie({'name' : key, 'value' : value})

The problem is that you are trying to add the cookies with a different format than the selenium expects.
The [python selenium api reference][1] says that you have to insert the cookies with a dict like that
driver.add_cookie({'name' : 'foo', 'value' : 'bar'})

So you have to adapt your loop to use a key,value format
for key, value in pickle.load(open(r'{0}\{1}_cookie.pkl'.format(settings.COOKIES_PATH, self.tv_username), 'rb')): self.browser.add_cookie({'name' : key, 'value' : value})
[1]: https://selenium-python.readthedocs.io/api.html#selenium.webdriver.remote.webdriver.WebDriver.add_cookie