在Python中删除空格和不可打印的字符 [英] Removing spaces and non-printable character in Python

问题描述

我正在使用lxml etree xpath方法处理xml文件.我的代码是

I am working with xml file using lxml etree xpath method. My code is

from lxml import etree
File="c:\file.xml"
doc=etree.parse(File)
alltext = doc.xpath('descendant-or-self::text()')
clump = "".join(alltext)
clump

我得到以下输出:

             "'\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\n\t\n\t\t\t\n\t\n\t\t\n\t\t\t\n\t\t\t\tIntroduction\n\t\t\t\n\t\t\t\n\t\t\n\t\t\n\t\t\t\n\t\t\t\tAccessibility\n\t\t\t\n\t\t\t\n\t\t\n\t\t\n\t\t\t\n\t\t\t\tOpening eBooks\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\

我想从输出中删除空格和所有制表符，所以我使用了另一个代码，但未能获得所需的输出
这是代码

I want to remove spaces and all tabs from output, so I use another code but failed to get the desired output
Here is that code

import string
filter(lambda x: x in string.printable, clump)

我只想从简介，可访问性，打开电子书"的输出中获取文本

I only want to get text from output which is "Introduction , Accessibilty , Opening eBooks"

推荐答案

如果您不介意使用regex进行操作:

If you don't mind to do it using regex:

import re
clump = re.sub(r'[\n\t]+', ' ', clump)

如果要删除其他任何字符，只需将其放在[]

If you want to put any other characters to remove, just place those inside the []

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