yahoo_login function does not work with newer version of Selenium

**Describe the bug**

The following 3 lines of code in 'yahoo_login' function in login.py gave an error when newer version of Selenium library is used. The suggested work around are also shown:

Original: self.driver.find_element_by_id("login-username").send_keys(self.username)
Change to: self.driver.find_element(By.ID,"login-username").send_keys(self.username)

Original: self.driver.find_element_by_xpath("//input[@id='login-signin']").click()
Change to: self.driver.find_element(By.XPATH,"//input[@id='login-signin']").click()

Original: self.driver.find_element_by_xpath("//button[@id='login-signin']").click()
Change to: self.driver.find_element(By.XPATH,"//button[@id='login-signin']").click()