解决问题学到东西的过程是最开心的过程:
从昨天到今天，突然发现string里面有很多html的tag，然后想去除掉，找了一圈说用beautifulsoup可以很方便的搞，用了后发现tag去除后，tag后面的字符串直接与前面的字符串搞到一起去了。如"I am a<p>good</p>guy!" 变成了"I am agoodguy!". 百思不得其解怎么搞，后面终于发现，有参数可以控制，哈哈哈，解决方案在这：
https://stackoverflow.com/questions/31140143/how-to-add-space-around-removed-tags-in-beautifulsoup 感恩！！
get_text() in beautifoulsoup4 has an optional input called separator. You can use it as follows :
soup = BeautifulSoup(html)text = soup.get_text(separator=' ')
效果如下：
>>> s = BeautifulSoup("I am a<p>good</p>guy!")
>>> s.get_text()
u'I am agoodguy!'
>>> s.get_text(separator=" ")
u'I am a good guy!'
>>>
