website is not called with ".get" with python/selenium. Why?

Question

I am trying to rewrite my script so it works using Page Object Model using Pycharm. Yes i'm an absolute newbie. So apologies if im missing something simple.

I have three questions

1. driver.get('http://www.demo.guru99.com/V4/') this line does not result in the page being called up in module called profile

2. from selenium import webdriver is greyed out in module called profile2

3. word 'profile' in this line is greyed out - profile = webdriver.FirefoxProfile(profile_path) why?

I would be so grateful for any guidance

profile.py module

from selenium import webdriver
import unittest
from profile2 import Login

class GuruTest(unittest.TestCase):
    @classmethod
    def setUpClass(self):

        profile_path = 'C:/FireFoxProfile'
      #looks like the word "profile = " is greyed out in line below
        profile = webdriver.FirefoxProfile(profile_path)
        self.driver = webdriver.Firefox(firefox_profile=profile_path)
        self.driver.implicitly_wait(5)
        self.driver.maximize_window()

    # this should call the guru99 website with the profile defined in setup 
    # function and insert passwords. Website does not open why?
    def Call_Login(self):
        driver = self.driver
        self.driver.get('http://www.demo.guru99.com/V4/')

        login = Login(driver)
        login,Username("mngr189426")
        login.Password("hapEnyn")
        login.SignIn()

    @classmethod
    def tearDownClass(self):
        self.driver.quit()

if __name__ == '__main__':
    unittest.main(verbosity=2)

Profile2.py module

#from import line is greyed out (it not in colours)
from selenium import webdriver

class Login(object):

    def __init__(self, driver):
        self.driver = driver

    def Username(self, user_name):
        self.driver.find_element_by_name("uid").clear()
        self.driver.find_element_by_name("uid").send_keys(user_name)

    def Password(self, password):
        self.driver.find_element_by_name("password").clear()
        self.driver.find_element_by_name("password").send_keys(password)

    def SignIn(self):
        self.driver.find_element_by_name("btnLogin").click