파이썬 : 목록에 \ n을 \ r에 \의 t을 대체하는 시작 \ n \ n을 제외하고 \ n을의 \ r \ n \의 t으로

Question

마이리스트 종료 :

['\n\r\n\tThis article is about sweet bananas. For the genus to which banana plants belong, see Musa (genus).\n\r\n\tFor starchier bananas used in cooking, see Cooking banana. For other uses, see Banana (disambiguation)\n\r\n\tMusa species are native to tropical Indomalaya and Australia, and are likely to have been first domesticated in Papua New Guinea.\n\r\n\tThey are grown in 135 countries.\n\n\n\r\n\tWorldwide, there is no sharp distinction between "bananas" and "plantains".\n\nDescription\n\r\n\tThe banana plant is the largest herbaceous flowering plant.\n\r\n\tAll the above-ground parts of a banana plant grow from a structure usually called a "corm".\n\nEtymology\n\r\n\tThe word banana is thought to be of West African origin, possibly from the Wolof word banaana, and passed into English via Spanish or Portuguese.\n']

예 코드 :

import requests 
from bs4 import BeautifulSoup 
import re 
re=requests.get('http://www.abcde.com/banana') 
soup=BeautifulSoup(re.text.encode('utf-8'), "html.parser") 
title_tag = soup.select_one('.page_article_title') 
print(title_tag.text) 
list=[] 
for tag in soup.select('.page_article_content'): 
    list.append(tag.text) 
#list=([c.replace('\n', '') for c in list]) 
#list=([c.replace('\r', '') for c in list]) 
#list=([c.replace('\t', '') for c in list]) 
print(list) 

웹 페이지를 긁어 낸 후에 데이터 정리를해야합니다. "\r", "\n", "\t"을 모두 ""으로 바꾸고 싶지만이 경우 자막이 있습니다. 자막과 문장이 혼합되어 있습니다 ().

모든 자막은 항상 \n\n으로 시작하고 \n\r\n\t으로 끝납니다. \aEtymology\a과 같이이 목록에서 구분할 수있는 작업이 가능할 수 있습니다. \n\n 및 \n\r\n\t을 \a으로 따로 대체하는 경우 다른 부분의 요소가 \n\n\r 일 때 첫 번째 원인은 \a\r이됩니다. 미리 감사드립니다!

Answer 1

접근하면

1. 교체리스트
2. 에서 지정 문자열 <subtitles>에 \n, \r이 목록
3. 에 \t 등이 실제 자막
로 정의 스트링을 교체 자막 바꾸기

코드

l=['\n\r\n\tThis article is about sweet bananas. For the genus to which banana plants belong, see Musa (genus).\n\r\n\tFor starchier bananas used in cooking, see Cooking banana. For other uses, see Banana (disambiguation)\n\r\n\tMusa species are native to tropical Indomalaya and Australia, and are likely to have been first domesticated in Papua New Guinea.\n\r\n\tThey are grown in 135 countries.\n\n\n\r\n\tWorldwide, there is no sharp distinction between "bananas" and "plantains".\n\nDescription\n\r\n\tThe banana plant is the largest herbaceous flowering plant.\n\r\n\tAll the above-ground parts of a banana plant grow from a structure usually called a "corm".\n\nEtymology\n\r\n\tThe word banana is thought to be of West African origin, possibly from the Wolof word banaana, and passed into English via Spanish or Portuguese.\n'] 

import re 
regex=re.findall("\n\n.*.\n\r\n\t",l[0]) 
print(regex) 

for x in regex: 
    l = [r.replace(x,"<subtitles>") for r in l] 

rep = ['\n','\t','\r'] 
for y in rep: 
    l = [r.replace(y, '') for r in l] 

for x in regex: 
    l = [r.replace('<subtitles>', x, 1) for r in l] 
print(l) 

출력

['\n\nDescription\n\r\n\t', '\n\nEtymology\n\r\n\t'] 

['This article is about sweet bananas. For the genus to which banana plants belong, see Musa (genus).For starchier bananas used in cooking, see Cooking banana. For other uses, see Banana (disambiguation)Musa species are native to tropical Indomalaya and Australia, and are likely to have been first domesticated in Papua New Guinea.They are grown in 135 countries.Worldwide, there is no sharp distinction between "bananas" and "plantains".\n\nDescription\n\r\n\tThe banana plant is the largest herbaceous flowering plant.All the above-ground parts of a banana plant grow from a structure usually called a "corm".\n\nEtymology\n\r\n\tThe word banana is thought to be of West African origin, possibly from the Wolof word banaana, and passed into English via Spanish or Portuguese.'] 

Answer 2

import re  

print([re.sub(r'[\n\r\t]', '', c) for c in list]) 

나는 당신이 정규식

Answer 3

당신은 정규 표현식을 사용하여이 작업을 수행 할 수 있습니다 사용할 수 있습니다 생각 :

import re 
subtitle = re.compile(r'\n\n(\w+)\n\r\n\t') 
new_list = [subtitle.sub(r"\a\g<1>\a", l) for l in li] 

\g<1>는 첫 번째 정규 표현식에서 (\ + w)에 대한 역 참조입니다. 그곳에있는 것을 재사용 할 수 있습니다.