I'm new to this so what documentation should I read that allows me to regenerate the browser request in python by looking at what's being passed to the server in Firefox? (I'm not injecting or altering the request)

I tried using Firefox-Inspector but I see a lot of ctl00$cphBody$hidCommCode and __VIEWSTATEGENERATOR 598C1823 and __EVENTVALIDATION

I tried to copy and paste that into my python script but I notice with tcpdump that __VIEWSTATE that is displayed by Firefox and my-python-script does not match what's in tcpdump - which is a bit odd?

Is there a way for me to manually write code to create (within python) the EVENTVALIDATION AND GENERATOR values vs copy/pasting from firefox.