Selenium with Chrome webdriver scraper class

selenium-chrome-scrapper.py

class ScraperWebJS:
    
    prepared = False
    
    def prepare(self):
        """
        Prepare the headless browser for a scrap session
        """
        if self.prepared:
            return
        self.prepared = True
        opts = Options()
        opts.add_argument('--headless')
        opts.add_argument('windows-size=1920,1080')
        self.drv = webdriver.Chrome(executable_path=CHROME_DRIVER_PATH, options=opts)
        self.drv.implicitly_wait(10)
    
    def scrape(self, url: str) -> Union[str, None]:
        """
        Scrape the "url" using selenium with Chrome backend
        """
        if not self.prepared:
            self.prepare()
        try:
            self.drv.get(url)
        except Exception as err:
            self.finish()
            return None
        return self.drv.page_source

    def finish(self):
        """
        Finish scrapping session
        """
        if self.prepared:
            self.drv.quit()
            self.prepared = False