Python get N characters from string with specific substring

I have a very long string that I extracted from a image file.
The string can look like this

...\n\nDate: 01.01.2022\n\nArticle-no: 123456789\n\nArticle description: asdfqwer 1234...\n...

How do I extract just the 10 characters after the substring "Article-no:"?

I tried solving it with a different approach using rfind like this but it tends to fail every now and then if the start and end string is not accurate.

    s = "... string shown above ..."
    start = "Article-no: "
    end = "Article description: "
    print(s[s.find(start)+len(start):s.rfind(end)])

>Solution :

you can use split:

string.split("Article-no: ", 1)[1][0:10]