How to not include a particular element from soup.select()? - python-3.x

Question

I use soup.select('.c-w a') to select elements. Inside c-w, there is c-s of which I would like not to include in this selection.
from bs4 import BeautifulSoup
txt = '''
<div class="c-w">
<div class="c-s">
<img class="soundpng" src="file://sound.png"/>
</div></div>
'''
soup = BeautifulSoup(txt, 'html.parser')
for a in soup.select('.c-w a'):
a['href'] = 'entry://'
and the result is
<div class="c-w">
<div class="c-s">
<img class="soundpng" src="file://sound.png"/>
</div></div>
My goal is to not include .c-s .a in this process of replacement. I mean when the search meet c-s, it will ignore this element and search in other ones. Could you please elaborate on how to achieve my goal?

Answer 1

Based on your comments, you can use .find_parent() to determine if the <a> tag is inside tag with class="c-s":
from bs4 import BeautifulSoup
txt = '''
<div class="c-w">
<div class="c-s">
<img class="soundpng" src="file://sound.png"/>
</div>
<div>
...
</div>
</div>
'''
soup = BeautifulSoup(txt, 'html.parser')
for a in soup.select('.c-w a'):
if a.find_parent(class_='c-s'):
continue
a['href'] = 'entry://'
print(soup.prettify())
Prints:
<div class="c-w">
<div class="c-s">
<a href="sound://english-french/sound/M000001099.mp3">
<img class="soundpng" src="file://sound.png"/>
</a>
</div>
<div>
<a href="entry://">
...
</a>
</div>
</div>
EDIT: To exclude both .c-s and .c-v, you can do this:
from bs4 import BeautifulSoup
txt = '''
<div class="c-w">
<div class="c-s">
<img class="soundpng" src="file://sound.png"/>
</div>
<div class="c-v">
<img class="soundpng" src="file://sound.png"/>
</div>
<div>
...
</div>
</div>
'''
soup = BeautifulSoup(txt, 'html.parser')
for a in soup.select('.c-w a'):
if a.find_parent(class_=['c-s', 'c-v']):
continue
a['href'] = 'entry://'
print(soup.prettify())
Prints:
<div class="c-w">
<div class="c-s">
<a href="sound://english-french/sound/M000001099.mp3">
<img class="soundpng" src="file://sound.png"/>
</a>
</div>
<div class="c-v">
<a href="sound://english-french/sound/M000001099.mp3">
<img class="soundpng" src="file://sound.png"/>
</a>
</div>
<div>
<a href="entry://">
...
</a>
</div>
</div>