arm 环境下安装selenium+chrome

1.  升级软件

　　apt-get update

2. 安装pip

　　apt-get install python3-pip

3. 安装selenium

　　pip3 install selenium

.4.. 安装chromedriver

　　sudo apt-get install chromium-chromedriver

5. 查看安装路径

　　dpkg -L chromium-chromedriver

代码：

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
chrome_options = Options()
# 无头模式启动
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument("window-size=1024,768")
chrome_options.add_argument("--no-sandbox")

browser = webdriver.Chrome(chrome_options=chrome_options, executable_path="/usr/bin/chromedriver")

browser.get("http://www.baidu.com")
print(browser.page_source)
browser.close()

　　

有时候会出现如下的错误

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/chromium-browser is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
(Driver info: chromedriver=72.0.3626.121,platform=Linux 4.14.71+ armv6l)

原因：

没有添加如下代码
chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument("window-size=1024,768")
chrome_options.add_argument("--no-sandbox")

　　

截图时汉字变成方块的问题：

安装中文字体

apt-get -y install fontconfig xfonts-utils