Python Regular epressions

Question

I would very much appreciate if any one could explain what is wrong with me regex.I tried it on a regex generator works perfectly but while compiling on my laptop it prints out None. i am given a html link and i would like to identify its href(reference)Here is the regex

r"(?<=\=\").{1,}(?=\W+?\s[t])"

example:

<li id="n-mainpage-description"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z">Main page</a></li>

error:

Please make this a [mcve] by including your code and the specific input you used that caused the error. — SuperStormer, Feb 18 '21 at 18:26
@SuperStormer The question was poorly formatted but OP did forget to supply the error which they received — MonkeyZeus, Feb 18 '21 at 18:29
You might be trying to load a page with javascript which doesn't have the html tags visible without rendering. — Leemosh, Feb 18 '21 at 18:32
Don't try to use regex to parse HTML. See https://stackoverflow.com/questions/590747/using-regular-expressions-to-parse-html-why-not — tripleee, Feb 18 '21 at 18:37

score 1 · Answer 1 · answered Feb 18 '21 at 18:31

1

You can make use of negative lookbehind to get the contents of an href:

(?<=href=\")[^\"]+

(?<=href=\") - make sure an href=" precedes my current position
[^\"]+ - capture everything which is not a double quote

https://regex101.com/r/NDVDNB/1

answered Feb 18 '21 at 18:31

MonkeyZeus

20,375
4
36
77

Python Regular epressions

1 Answers1