How to find a link in a string completely?

E

ekzotika2020-12-11 17:52:04

Python

ekzotika, 2020-12-11 17:52:04

I need to find and cut the desired link in a string. Now I find links like this:

pattern = r'<a rel="(.+?)">'
s = re.findall(pattern, item.content)

I go through the cycle

for string in s:
...

But then after a certain condition, if it is true, I need to remove this particular string from item.content, while leaving the name of the link that is visible on the page. Tell me how to do it?

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1 answer(s)

D

devdb, 2020-12-18
@devdb

Alternatively (not the only possible solution):

pattern = r'(<a rel=")(.+?)(">)'
splitted = re.split( pattern, html_str ) 
# splitted == [ '<html>...', '<a rel="', 'http://site.com/image1.jpg', '">', '<div>...', '<a rel="', 'http://site.com/image2.jpg', '">', ... ]
urls = splitted[2::4]
# urls == ['http://site.com/image1.jpg', 'http://site.com/image2.jpg', ... ]

Then iterate through the splitted in a loop with step 4, and if the image does not satisfy the condition, remove the current ones [ '<a rel="', 'http://site.com/image2.jpg', '">' ]from the splitted list or replace them with something (for example, "link name").
And after cleaning:
cleaned_html_str = ''.join(splitted)