需要额外注意，xdg-open 需要调用浏览器的方法

[zhouqian177]

python app.py .... Start:0.0.0.0:9966 /usr/bin/xdg-open: 882: x-www-browser: not found /usr/bin/xdg-open: 882: firefox: not found /usr/bin/xdg-open: 882: iceweasel: not found /usr/bin/xdg-open: 882: seamonkey: not found /usr/bin/xdg-open: 882: mozilla: not found /usr/bin/xdg-open: 882: epiphany: not found /usr/bin/xdg-open: 882: konqueror: not found /usr/bin/xdg-open: 882: chromium: not found /usr/bin/xdg-open: 882: chromium-browser: not found /usr/bin/xdg-open: 882: google-chrome: not found /usr/bin/xdg-open: 882: www-browser: not found /usr/bin/xdg-open: 882: links2: not found /usr/bin/xdg-open: 882: elinks: not found /usr/bin/xdg-open: 882: links: not found /usr/bin/xdg-open: 882: lynx: not found /usr/bin/xdg-open: 882: w3m: not found xdg-open: no method available for opening 'http://0.0.0.0:9966'

解决办法 （至少安装一种浏览器工具）： wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb

sudo apt-get install fonts-liberation libu2f-udev #google-chrome 依赖

sudo dpkg -i google-chrome-stable_current_amd64.deb