def __init__(self, pty):

        self.pty = pty
        self.original_handler = None
Build the DataViewer subclass for this viewer
dataset/ETHPy150Open d11wtq/dockerpty/dockerpty/pty.py/WINCHHandler.__init__--crossover with--dataset/ETHPy150Open glue-viz/glue/glue/viewers/custom/qt/custom_viewer.py/CustomViewer._build_widget_subclass