Selenium 与 Python 不打印 console.log 消息

Question

我的问题是，当我运行此 Python 脚本时，我在日志中看不到任何 console.log、console.error、console.warning 消息：

import time
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.options import Options

class ChromeDriver():

    def __init__(login_url, user, passwd):
        self.login_url = login_url
        self.user = user
        self.passwd = passwd

    def __enter__(self):
        options = Options()
        options.set_capability('goog:loggingPrefs', {'browser': 'ALL'})
        self.driver = webdriver.Chrome(options=options)
        self.driver.maximize_window()
        self._login()
        return self.driver

    def _login():
        pass # implement login

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.driver.quit()

def check_console_logs(driver, url):
    try:
        driver.get(url)

        WebDriverWait(driver, 10).until(
            EC.presence_of_element_located((By.TAG_NAME, 'title'))
        )
        if '404' in driver.title:
            print(f'failed to open {url}: 404 Not found')
            return

        logs = driver.get_log('browser')
        if logs:
            print(f"Console logs found in {url}:")
            for log_entry in logs:
                print(log_entry['level'], log_entry['message'])
            print()
        time.sleep(5)

    except Exception as ex:
        print(f"Error occurred while accessing {url}: {ex}")


test_urls = [''] # add urls to test

with ChromeDriver(username, password) as driver:
    for url in test_urls:
        check_console_logs(driver, url)

但是，如果我在调试器中暂停它并在由 Python 生成的浏览器中打开开发工具，我就可以看到所有日志。我尝试了很多，但仍然无法在 Python 中记录任何 Javascript 消息。

我只看到一些其他日志，我对此不感兴趣，因为我想做的是调用我的项目的不同url，以查看我的程序流程中是否打印了一些意外的警告或错误。

driver.capability显示browserVersion 122.06261.129，chromedriverVersion是122.0.6261.128，我使用selenium 4.18.1和Python 3.10。

Answer 1

好吧，在深入研究此链接后我现在明白了：https://bugs.chromium.org/p/chromedriver/issues/detail?id=2976

我还需要向驱动程序添加一项服务并设置 --verbose 参数

from selenium.webdriver.chrome.service import Service
...
def __enter__(self):
    ...
    service = Service(service_args=["--verbose"])
    self.driver = webdriver.Chrome(options=options, service=service)
    ...