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Method Description
The HTML tags appearing at the same indentation level are called siblings. The previous_sibling property of the PageElement returns a previous tag (a tag appearing before the current tag) at the same level, or under the same parent. This property encapsulates the find_previous_sibling() method.
Syntax
element.previous_sibling
Return type
The previous_sibling property returns a PageElement, a Tag or a NavigableString object.
Example 1
In the following code, the HTML string consists of two adjacent tags inside a <p> tag. It shows the sibling tag for <b> tag appearing before it.
from bs4 import BeautifulSoup
fp = open("index.html")
soup = BeautifulSoup("<p><b>Hello</b><i>Python</i></p>", ''html.parser'')
tag = soup.i
sibling = tag.previous_sibling
print (sibling)
Output
<b>Hello</b>
Example 2
We are using the index.html file for parsing. The page contains a HTML form with three input elements. Which element is a previous sibling of input element with its id attribute as age? The following code shows it −
from bs4 import BeautifulSoup
fp = open("index.html")
soup = BeautifulSoup(fp, ''html.parser'')
tag = soup.find(''input'', {''id'':''age''})
sib = tag.previous_sibling.previous_sibling
print (sib)
Output
<input id="nm" name="name" type="text"/>
Example 3
First we find the <p> tag containing the string ”Tutorial” and then fins a tag previous to it.
html = ''''''
<p>Excellent</p><p>Python</p><p>Tutorial</p>
''''''
from bs4 import BeautifulSoup
soup = BeautifulSoup(html, ''html.parser'')
tag = soup.find(''p'', string=''Tutorial'')
print (tag.previous_sibling)
Output
<p>Python</p>
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