https://bearboss.blog/2008/09/04/%e4%bb%a4%e4%ba%ba%e5%bf%83%e5%8b%95%e7%9a%84%e9%9b%bb%e8%85%a6%e7%9b%b8%e6%a9%9f%e5%8c%85-booq-python-pack/