centos7+python+selenium+chrome

1.安装chrome

yum install google-chrome

2.安装chromedriver
所有版本的下载地址：https://sites.google.com/a/chromium.org/chromedriver/downloads

wget https://chromedriver.storage.googleapis.com/2.39/chromedriver_linux64.zip
unzip chromedriver_linux64.zip

3.selenium

pip install selenium

4.例子

>>> from selenium import webdriver
>>> chrome_options = webdriver.ChromeOptions()
>>> chrome_options.add_argument('--headless')
>>> chrome_options.add_argument('--no-sandbox')  # 这句一定要加
#我一开始没加，就一直报‘selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited abnormally’。搞了很久。
>>> driver = webdriver.Chrome(executable_path='/root/chromedriver', chrome_options=chrome_options)
>>> driver.get('http://py2app.readthedocs.io/en/latest/examples.html')
>>> print driver.title
Example setup.py templates — py2app 0.15 documentation

chromedriver应该要给执行权限，也就是chmod +x chromedriver，因为我为了解决Chrome failed to start: exited abnormally这个错误，做了很多尝试，也不知道这个是不是必须的，加了不会错😄