from PyQt5 import QtCore, QtGui, QtWidgets, QtPrintSupport

# from PySide2 import QtCore, QtGui, QtWidgets, QtPrintSupport
# QtCore.pyqtSignal = QtCore.Signal
# QtCore.pyqtProperty = QtCore.Property
# QtCore.pyqtSlot = QtCore.Slot

# import pyqtgraph as pg
#
# pg.setConfigOption('background', 'w')
# pg.setConfigOption('foreground', 'k')