from selenium import webdriver
driver = webdriver.Opera('C:/operadriver_win64/operadriver.exe')
driver.get("http://www.opera.com")
selenium.common.exceptions.WebDriverException: Message: 'operadriver' executable needs to be in PATH.
driver = webdriver.Chrome('C:/operadriver_win64/operadriver.exe')
selenium.common.exceptions.WebDriverException: Message: unknown error: cannot find Opera binary