如何覆盖selenium中的chrome命令行开关的默认设置

Question

默认情况下，chrome将使用以下命令行运行：

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
--disable-hang-monitor
--disable-prompt-on-repost
--dom-automation
--full-memory-crash-report
--no-default-browser-check
--no-first-run
--disable-background-networking
--disable-sync
--disable-translate
--disable-web-resources
--safebrowsing-disable-auto-update
--safebrowsing-disable-download-protection
--disable-client-side-phishing-detection
--disable-component-update
--disable-default-apps
--enable-logging
--log-level=1
--ignore-certificate-errors
--no-default-browser-check
--test-type=ui
--user-data-dir="C:\Users\nik\AppData\Local\Temp\scoped_dir1972_4232"
--testing-channel=ChromeTestingInterface:1972.1
--noerrdialogs
--metrics-recording-only
--enable-logging
--disable-zero-browsers-open-for-tests
--allow-file-access
--allow-file-access-from-files about:blank

我需要重写（删除）所有命令--disable-*，因为没有等效命令--enable-*。

最后，我要使用以下命令行运行浏览器：

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"    
--dom-automation
--full-memory-crash-report
--no-first-run
--safebrowsing-disable-auto-update
--safebrowsing-disable-download-protection
--enable-logging
--log-level=1
--ignore-certificate-errors
--test-type=ui
--user-data-dir="C:\Users\nik\AppData\Local\Temp\scoped_dir1972_4232"
--testing-channel=ChromeTestingInterface:1972.1
--noerrdialogs
--metrics-recording-only
--enable-logging
--allow-file-access
--allow-file-access-from-files about:blank

例如，我尝试使用翻译信息栏运行浏览器。我找到了选择--enable-translate。

capabilities = DesiredCapabilities.CHROME.copy()
capabilities['chrome.switches'] = ['--enable-translate']

但这没有帮助，信息栏不会出现。在命令行中，有两个命令：--disable-translate和--enable- translate。这是因为有必要删除该命令--disable-default-apps

Answer 1

您应该 自己启动浏览器 ，然后告诉selenium，您已经通过 传递特殊通道id 启动了它。像这样：

from random import randrange
channel_id = "%032x" % randrange(16**32)

from subprocess import Popen
# HERE YOU PASS ONLY THOSE PARAMETERS YOU WANT (i.e. without --disable-*)
# BUT YOU MAY NEED --dom-automation FOR SOME ROUTINES
chrome = Popen(" ".join([
    PATH_TO_CHROME_EXE,
    "--no-first-run", "--dom-automation",
    ("--testing-channel=\"NamedTestingInterface:%s\"" % channel_id),
]))

try:
    from selenium.webdriver.chrome.service import Service
    chromedriver_server = Service(PATH_TO_CHROMEDRIVER, 0)
    chromedriver_server.start()
    from selenium.webdriver import Remote
    driver = Remote(chromedriver_server.service_url,
        {"chrome.channel": channel_id, "chrome.noWebsiteTestingDefaults": True})

    driver.get(MY_WEBPAGE)
    # DO YOUR WORK

finally:
    chromedriver_server.stop()
    driver.quit()

chrome.kill()
chrome.wait()