I used Python3.7.5 and installed requests, requests-file, beautifulsoup4.
Install requests-file because the URL I want to check is the beginning of the form file:/// (file protocol, see here).
Write the script the main reason is that, when I read "printable_docs/usermanual/component_reference.html" under JMeter install directory, on visit "BeanShell_Assertion" section, In the "Parameters" table "Reset*" row, the cell hyperlink in the "Desc" column is wrong, so I decided to write a script to see if all the html files have similar problems.
The bug has been uploaded to ASF Bugzilla, click here to view the progress of the bug.