保留字符串內容\ n並寫入一行

我有以下代碼來解析某些HTML。我需要將輸出（html結果）保存爲帶有轉義字符序列的單行代碼，例如\n，但由於單引號或輸出結果，我得到的表示不能從repr()使用寫入多行，像這樣（解釋轉義序列）：保留字符串內容 n並寫入一行

<section class="prog__container"> 
<span class="prog__sub">Title</span> 
<p>PEP 336 - Make None Callable</p> 
<span class="prog__sub">Description</span> 
<p> 
<p> 
<code> 
     None 
    </code> 
    should be a callable object that when called with any 
arguments has no side effect and returns 
    <code> 
     None 
    </code> 
    . 
    </p> 
</p> 
</section>

我需要什麼樣的（包括轉義序列）：

<section class="prog__container">\n <span class="prog__sub">Title</span>\n <p>PEP 336 - Make None Callable</p>\n <span class="prog__sub">Description</span>\n <p>\n <p>\n <code>\n  None\n  </code>\n  should be a callable object that when called with any\n arguments has no side effect and returns\n  <code>\n  None\n  </code>\n  .\n </p>\n </p>\n </section>

我的代碼

soup = BeautifulSoup(html, "html.parser") 

for match in soup.findAll(['div']): 
    match.unwrap() 

for match in soup.findAll(['a']): 
    match.unwrap() 

html = soup.contents[0] 
html = str(html) 
html = html.splitlines(True) 
html = " ".join(html) 
html = re.sub(re.compile("\n"), "\\n", html) 
html = repl(html) # my current solution works, but unusable

以上是我的解決方案，但是對象表示不好，我需要字符串表示。我怎樣才能做到這一點？

來源

2017-01-12 lkdjf0293

的HTML代碼，爲什麼不使用只repr？

a = """this is the first line 
this is the second line""" 
print repr(a)

甚至（如果我清楚你的確切輸出的問題，而文字引號）

print repr(a).strip("'")

輸出：

'this is the first line\nthis is the second line' 
this is the first line\nthis is the second line

來源

2017-01-12 15:38:19

這工作。接受最簡單的解決方案 – lkdjf0293

import bs4 

html = '''<section class="prog__container"> 
<span class="prog__sub">Title</span> 
<p>PEP 336 - Make None Callable</p> 
<span class="prog__sub">Description</span> 
<p> 
<p> 
<code> 
     None 
    </code> 
    should be a callable object that when called with any 
arguments has no side effect and returns 
    <code> 
     None 
    </code> 
    . 
    </p> 
</p> 
</section>''' 
soup = bs4.BeautifulSoup(html, 'lxml') 
str(soup)

出來：

'<html><body><section class="prog__container">\n<span class="prog__sub">Title</span>\n<p>PEP 336 - Make None Callable</p>\n<span class="prog__sub">Description</span>\n<p>\n</p><p>\n<code>\n  None\n  </code>\n  should be a callable object that when called with any\n arguments has no side effect and returns\n  <code>\n  None\n  </code>\n  .\n </p>\n</section></body></html>'

有輸出更復雜的方式是在Document

來源

2017-01-12 15:26:48

謝謝fo你的答案！這裏存在的問題與使用關於單引號的'repr（）'函數相同。 – lkdjf0293

from bs4 import BeautifulSoup 
import urllib.request 

r = urllib.request.urlopen('https://www.example.com') 
soup = BeautifulSoup(r.read(), 'html.parser') 
html = str(soup)

這會給你的HTML作爲一個字符串和\ n

來源

2017-01-12 15:53:25 wolfcubman

保留字符串內容\ n並寫入一行

回答

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