Apr-11-2022, 08:57 PM
Yes,can eg save the the state of want to check to disk.
from bs4 import BeautifulSoup
html = '''\
<body>
<h1>The img element</h1>
<img src="img_girl.jpg" alt="Girl in a jacket" width="500" height="600">
</body>
</html>'''
soup = BeautifulSoup(html, 'lxml')
img_tag = soup.select_one('img')['alt'] # Girl in a jacket
with open('img_tag.txt', 'w') as f_out:
f_out.write(img_tag)Then check like this.from bs4 import BeautifulSoup
html = '''\
<body>
<h1>The img element</h1>
<img src="img_girl.jpg" alt="Apple in snow" width="500" height="600">
</body>
</html>'''
soup = BeautifulSoup(html, 'lxml')
img_tag = soup.select_one('img')['alt']
with open('img_tag.txt') as f:
old_tag = f.read()
if old_tag == img_tag:
print('No update')
else:
print(f'New image update: <{img_tag}>')Output:New image update: <Apple in snow>