Unless I can replicate your problem I can not solve your problem. So far it is working fine.You can check how I coded it also - https://www.youtube.com/watch?v=69yRch3mQCg&list=PLQ4ZLPe8sUF0zjQqHBz5qbBt1b6QOG6Pw
I am quite sure you have server or machine specific problem because it works fine in Google Collab too.
Server update has been made 20 days ago. I have been busy with my daughter and prioritized my projects accordingly. I never created this project for helping people. It is for the modules of https://unofficed.com/leverage/
I just gave it for free thinking on hope of getting contributors which will in turn lessen my burden.
It is a beta update.
https://forum.unofficed.com/t/nsepython-documentation/376/153?u=dexter
You can always find beta updates in that thread. I will update it in the main doc after some time. As this is a mere hobby project, it has no such timeline.
Maybe after adding few more stuffs.