安装chromedriver
1、安装chrome
用下面的命令安装最新的 Google Chrome
yum install https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm
也可以下载到本地再安装
wget https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpmyum install ./google-chrome-stable_current_x86_64.rpm
安装必要的库
yum install mesa-libOSMesa-devel gnu-free-sans-fonts wqy-zenhei-fonts
2、安装 chromedriver
查看谷歌浏览器版本
(base) [root@brady ~]# google-chrome --version
Google Chrome 78.0.3904.108
chrome官网 wget https://chromedriver.storage.googleapis.com/2.38/chromedriver_linux64.zip
淘宝源（推荐）wget http://npm.taobao.org/mirrors/chromedriver/2.41/chromedriver_linux64.zip
将下载的文件解压，放在如下位置
unzip chromedriver_linux64.zip
/usr/bin/chromedriver
给予执行权限
chmod +x /usr/bin/chromedriver
还可以参考这篇文章，虽然没试过，但感觉很牛逼 https://intoli.com/blog/installing-google-chrome-on-centos/
解决selenium报错--unknown error: DevToolsActivePort file doesn't exist
早上在linux下用selenium启动Chrome时出现问题：
报错：
Traceback (most recent call last): File "get2.py", line 62, in <module> browser = webdriver.Chrome() File "/root/.pyenv/versions/anaconda3-5.1.0/lib/python3.6/site-packages/selenium/webdriver/chrome/webdriver.py", line 75, in __init__ desired_capabilities=desired_capabilities) File "/root/.pyenv/versions/anaconda3-5.1.0/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 154, in __init__ self.start_session(desired_capabilities, browser_profile) File "/root/.pyenv/versions/anaconda3-5.1.0/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 243, in start_session response = self.execute(Command.NEW_SESSION, parameters) File "/root/.pyenv/versions/anaconda3-5.1.0/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 311, in execute self.error_handler.check_response(response) File "/root/.pyenv/versions/anaconda3-5.1.0/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 237, in check_response raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally (unknown error: DevToolsActivePort file doesn't exist) (The process started from chrome location /usr/bin/google-chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.) (Driver info: chromedriver=2.43.600233 (523efee95e3d68b8719b3a1c83051aa63aa6b10d),platform=Linux 4.9.0-6-amd64 x86_64)
解决方案：
加上代码：
from selenium.webdriver.chrome.options import Options chrome_options = Options() chrome_options.add_argument('--no-sandbox') chrome_options.add_argument('--disable-dev-shm-usage') chrome_options.add_argument('--headless') browser = webdriver.Chrome(chrome_options=chrome_options)
其中
“–no-sandbox”参数是让Chrome在root权限下跑
“–headless”参数是不用打开图形界面
可以额外加这些参数获得更好体验
chrome_options.add_argument('blink-settings=imagesEnabled=false') chrome_options.add_argument('--disable-gpu')