如何使用webdriver并行化Python循环？

from selenium import webdriver
from threading import Thread

def run_webdriver(url):
    driver = webdriver.Chrome()  # 实例化webdriver对象，这里以Chrome为例
    driver.get(url)  # 打开指定的URL
    # 执行其他webdriver操作
    driver.quit()  # 关闭webdriver

def run_parallel():
    urls = ['url1', 'url2', 'url3']  # 待访问的URL列表
    threads = []
    for url in urls:
        t = Thread(target=run_webdriver, args=(url,))
        threads.append(t)
        t.start()
    for t in threads:
        t.join()

if __name__ == '__main__':
    run_parallel()