Python Selenium 如何连续运行？

Question

当driver2.find_element("xpath", f'//*[text()="{entry1.get()}"]').click() 出现错误时，我想重新启动我的程序我该怎么做，请帮助我

class a(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)

    def run(self):
        bot()
        while True:
            bot()

    def bot():
    global driver2
    global chrome_options2
    options2 = {
        'proxy': {
            'http': random.choice(proxylist),
        }
    }
   
    chrome_options2 = uc.ChromeOptions()
   
    driver2 = uc.Chrome(
        options=chrome_options2,
        seleniumwire_options=options2,
        use_subprocess=True,
    )
    url = 'https://www.google.com'
    again = True
    while again:
        try:
            driver2.get(url)
            driver2.find_element("name", "q")
            time.sleep(1)
            driver2.find_element("name", "q").send_keys(entry.get())
            time.sleep(1)
            driver2.find_element("name", "q").send_keys(Keys.ENTER)
            time.sleep(1)
            driver2.find_element("xpath", f'//*[text()="{entry1.get()}"]').click()
            again = False
        except:
            pass
    time.sleep(5)
    driver2.execute_script("window.scrollTo(0, 800);")
    time.sleep(1)
    driver2.execute_script("window.scrollTo(0, -800);")
    time.sleep(1)
    driver2.execute_script("window.scrollTo(0, 800);")
    time.sleep(1)
    driver2.execute_script("window.scrollTo(0, -800);")
    time.sleep(1)
    driver2.execute_script("window.scrollTo(0, 800);")
    time.sleep(1)
    driver2.execute_script("window.scrollTo(0, -800);")
    time.sleep(1)
    driver2.quit()

Answer 1

您可以将要重复的代码块放入 try-except 块内，直到它成功为止 while 循环内。如下：

url = 'https://www.google.com'
again = True
while again:
    try:
        driver2.get(url)
        driver2.find_element("name", "q")
        time.sleep(1)
        driver2.find_element("name", "q").send_keys(entry.get())
        time.sleep(1)
        driver2.find_element("name", "q").send_keys(Keys.ENTER)
        time.sleep(1)
        driver2.find_element("xpath", f'//*[text()="{entry1.get()}"]').click()
        again = False
    except:
        driver2.close()
time.sleep(5)
driver2.execute_script("window.scrollTo(0, 800);")
time.sleep(1)
driver2.execute_script("window.scrollTo(0, -800);")
time.sleep(1)
driver2.execute_script("window.scrollTo(0, 800);")
time.sleep(1)
driver2.execute_script("window.scrollTo(0, -800);")
time.sleep(1)
driver2.execute_script("window.scrollTo(0, 800);")
time.sleep(1)
driver2.execute_script("window.scrollTo(0, -800);")
time.sleep(1)
driver2.quit()

你的代码应该改进。在每个代码步骤之后设置 1 秒的硬编码延迟不是正确的方法。