在Python3.5.2和Python3.4.2之间，BeautifulSoup select函数的工作方式是不同的

Problem: I have a html file, it contains some tag, and now I want to find a tag(table) with a class attribute which value is 'targets', use BeautifulSoup4.5.1, it works fine in python3.5.2(Mac Sierra), but do not work in python3.4.2(raspberry pi), I want to figure out why. I have a html file, it contains some t