explain_intent.py

"""
  Many Qt functions are not threadsafe. If you use function callback, 
  even if you put locks around all of YOUR draw calls, you will segfault 
  because Qt's main event loop is still running and using 
  resources without locks.
"""

from multiprocessing.pool import ThreadPool
import sys
from threading import Lock
import time

from PyQt5 import QtCore, QtWidgets

class Task(QtCore.QObject):
    updated = QtCore.pyqtSignal(int, int)
    ...............
    ...............