how to read dynamics values from criptovalue page (bitmex) in java or python

I need to extract some variables values in this dynamic html or javascript or php page i don't know ( https://www.bitmex.com/app/trade/XBTUSD ) using a java or python program.

I tried in python the last year and i was able only to read static html but with dynamics one it didn't work.

i want to get data to do some analysis of demand and supply and how they are related to price. so I need to get a long array of data in function of time (every 1-10 seconds). thank you