update chatmol_lit.py

import json

from pymol import cmd

conversation_history = ""

def query_qaserver(question):

    headers = {

        'Content-Type': 'application/x-www-form-urlencoded',

    return response.text

def chatlit(question):

    global conversation_history

    question = conversation_history + question

    answer = query_qaserver(question)

    data = json.loads(answer)

    commands = data['answer']