如何从python字符串中删除大量空白？

Question

我知道有一些类似的问题，但我找不到解决我的问题。 我有一个字符串：

"subject: Exercise Feedback Form
persona_id: bresse
Q1: Yes
Q1 comments: Yes everything was found A1
Q2: No
Q2 comments: No forgot to email me A2
Q3: Yes
Q3 comments: All was good A3
Q4: No
Q4 comments: It was terrible A4
Q5_comments: Get Alex to make it better






























subject: Issue With App
persona_id: bresse
comments: Facebook does not work comments feedback"

正如你所看到的，中间有大量的白色空间。我如何使用python删除它？你知道吗

Answer 1

试试这个：

s = """subject: Exercise Feedback Form
persona_id: bresse
Q1: Yes
Q1 comments: Yes everything was found A1
Q2: No
Q2 comments: No forgot to email me A2
Q3: Yes
Q3 comments: All was good A3
Q4: No
Q4 comments: It was terrible A4
Q5_comments: Get Alex to make it better






























subject: Issue With App
persona_id: bresse
comments: Facebook does not work comments feedback"""
s = s.replace("\n\n","")
print(s)

Answer 2

其中text是您的字符串：

import re
text = re.sub(r"\s{2,}", "", text)

Answer 3

您可以使用正则表达式并将表达式配置为将n个或多个空格/换行符/制表符/空格替换为一个空格：

import re

s = "hello     \n   world"
print(re.sub("\s{4,}"," ",s))

印刷品：

hello world

在这里，如果至少有4个空格/换行符/制表符/whatever（\s在regex中），它将删除所有空格/换行符/制表符/whatever，并且将只替换一个空格（为了避免在替换之后对分隔的单词进行排序，您可以用换行符或不使用字符替换）。你知道吗