first you should export a chat from telegram using telegram-desktop then, copy .py file near html files(it doesnt need other files)

to run program you should install beautifulsoup4 and python3 after installing, run by this : python3 2person.py or python3 group.py

wait program to load and process, it may take a while if messages are lot you can specify name of sender in group.py in lines of code (sorry for little mess!) here is construction for specify name in group (for froup.py) look at this:

  #if "f_name" in sender.lower() and "l_name" in sender.lower() :
  db[int(time[1:3])]+=1;

first line is commented! change it like this :

  if "ali" in sender.lower() and "alavi" in sender.lower() :
  db[int(time[1:3])]+=1;

this will find all ali alavi's messages in that group!