So this is what I have. I'm trying your last comment Anda, but I'm doing something wrong.
I have a few labels, which I put inside a QGridLayout, and then I'm trying to put it into the scroll area, but I'm getting an error on line 34
The Error says
TypeError: scrollArea.setWidget(QWidget) : argument 1 has unexpected type (QGridLayout)
Qt Code: 
  1. class ViewerLabel(QLabel):
  2.     def __init__(self, parent=None):
  3.         super(ViewerLabel, self).__init__(parent)
  4.         self.setMouseTracking(True)
  5.         self.setAlignment(Qt.AlignCenter)
  6.  
  7.     def enterEvent(self,event):
  8.         button.setStyleSheet("background-color:#45b545;")
  9.  
  10.     def leaveEvent(self,event):
  11.         button.setStyleSheet("background-color:yellow;")
  12.  
  13. def main():
  14.  
  15.      layout = QGridLayout()
  16.      scrollArea = QScrollArea()
  17.  
  18.     label_01 = ViewerLabel(“label 01”)
  19.     label_02 = ViewerLabel(“label 02”)
  20.     label_03 = ViewerLabel(“label 03”)
  21.     label_04 = ViewerLabel(“label 04”)
  22.     label_05 = ViewerLabel(“label 05”)
  23.     label_06 = ViewerLabel(“label 06”)
  24.  
  25.     layout.addwidget(label_01, 0, 1)
  26.     layout.addwidget(label_02, 0, 2)
  27.     layout.addwidget(label_03, 1, 1)
  28.     layout.addwidget(label_04, 1, 2)
  29.     layout.addwidget(label_05, 2, 1)
  30.     layout.addwidget(label_06, 2, 2)
  31.  
  32.     layout.setSpacing(10)
  33.  
  34.     scrollArea.setWidget(layout)
  35.     window.setLayout(scrollArea)
  36.  
  37.     window.setFixedSize(400,500)
  38.     window.show()
  39.  
  40.     return app.exec_()
  41.  
  42.  
  43. if __name__ == __main__:
  44.     main()
To copy to clipboard, switch view to plain text mode