How to make a graph that shows chat activity?

Question

Python

Is it possible to make the graph show information about the activity of the conversation (number of messages)? Now I made an ordinary plot through matplotlib and made it save to a folder for later output to the conversation.
Here is the script:

if msg == "!график":
  x = np.linspace(-3, 3, 200)
  y = x*(x + 2)*(x - 2)
  fig, ax = plt.subplots()
  ax.plot(x, y)
  fig.savefig('график.png')

Conclusion:

Answer 1

Yes, you can. Take the VK API (if we are talking about VKontakte), use the messages.getHistory method, get all messages, group them by date, count the number of messages in {second, minute, hour, day, month, year}.
For new messages, you can use long poll. If we are talking about a bot, then callback
Personally, I would do this: (Do not take my example, I'm a teapot. Maybe experts will suggest a better solution)
1. For new messages, I would enter the date, message id and user_id (so that you can look at the activity a specific user) to some database
2. Displayed using matplotlib