Beautifulsoup
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="title"><b>The Dormouse's story</b></p>
<p class="story">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" class="sister" id="link1">Elsie</a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>
<p class="story">...</p>
"""
설치 과정
1. pip list 입력
2. pip install beautifulsoup4 lxml 입력
3. from bs4 import BeautifulSoup
soup = BeautifulSoup(html_doc, 'lxml')
print(html_doc) # 입력한 그대로 나옴
print(soup.prettify()) # 자동으로 닫는 태그 생성
태그들이 어떤 클래스의 인스턴스 형태.
print(soup.title)
# <title>The Dormouse's story</title>
print(soup.title.name)
# u'title'
print(soup.title.string)
# u'The Dormouse's story'
print(soup.title.parent.name)
# u'head'
print(soup.p)
# <p class="title"><b>The Dormouse's story</b></p>
print(soup.p['class'])
# u'title'
print(soup.a)
# <a class="sister" href="http://example.com/elsie" id="link1">Elsie</a>
print(soup.find_all('a'))
# [<a class="sister" href="http://example.com/elsie" id="link1">Elsie</a>,
# <a class="sister" href="http://example.com/lacie" id="link2">Lacie</a>,
# <a class="sister" href="http://example.com/tillie" id="link3">Tillie</a>]
print(soup.find(id="link3"))
# <a class="sister" href="http://example.com/tillie" id="link3">Tillie</a>
참고사이트 : Beautiful Soup Documentation
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