Traceback (most recent call last):
  File "filepath-example-only", line 825, in <module>
    main()
  File "filepath-example-only", line 817, in main
    main = MainWindow()
  File "filepath-example-only", line 780, in __init__
    topLayout.addWidget(self.startlabel,0,0)
TypeError: 'PySide2.QtWidgets.QBoxLayout.addWidget' called with wrong argument types:
  PySide2.QtWidgets.QBoxLayout.addWidget(QLabel, int, int)
Supported signatures:
  PySide2.QtWidgets.QBoxLayout.addWidget(PySide2.QtWidgets.QWidget, int = 0,
PySide2.QtCore.Qt.Alignment = Default(Qt.Alignment))
  PySide2.QtWidgets.QBoxLayout.addWidget(PySide2.QtWidgets.QWidget)

Python 3.7.1rc2

Requirement already satisfied: PySide2 in
c:usersMachine1appdatalocalprogramspythonpython37-32libsite-packages (5.12.0a1.dev1541316155)
Requirement already satisfied: shiboken2 in
c:usersMachine1appdatalocalprogramspythonpython37-32libsite-packages (from PySide2) (5.12.0a1.dev1541316155)

Python 3.7.2

Requirement already satisfied: PySide2 in c:usersmachine2appdatalocalprogramspythonpython37-32libsite-packages (5.12.1)
Requirement already satisfied: shiboken2==5.12.1 in c:usersmachine2appdatalocalprogramspythonpython37-32libsite-packages (from PySide2) (5.12.1)