Python从除撇号之外的unicode字符串中删除标点符号

Question

我发现了几个这方面的主题，我找到了这个解决方案：

sentence=re.sub(ur"[^\P{P}'|-]+",'',sentence)

这应该删除除了'之外的每个标点符号，问题是它还会删除句子中的所有其他标点符号。

例：

>>> sentence="warhol's art used many types of media, including hand drawing, painting, printmaking, photography, silk screening, sculpture, film, and music."
>>> sentence=re.sub(ur"[^\P{P}']+",'',sentence)
>>> print sentence
'

当然我想要的是保持句子没有标点符号，“warhol”保持原样

期望的输出：

"warhol's art used many types of media including hand drawing painting printmaking photography silk screening sculpture film and music"
"austro-hungarian empire"

编辑：我也试过用

tbl = dict.fromkeys(i for i in xrange(sys.maxunicode)
    if unicodedata.category(unichr(i)).startswith('P')) 
sentence = sentence.translate(tbl)

但这会删除每个标点符号

Answer 1

指定所有你不想删除，即元素\\w ， \\d ， \\s等，这是什么^运营商，在方括号表示。 （匹配除外）

>>> import re
>>> sentence="warhol's art used many types of media, including hand drawing, painting, printmaking, photography, silk screening, sculpture, film, and music."
>>> print re.sub(ur"[^\w\d'\s]+",'',sentence)
warhol's art used many types of media including hand drawing painting printmaking photography silk screening sculpture film and music
>>>