def __init__(self, master=None):
super().__init__(master)
self.pack(expand=True, fill='both')
self._build_widgets()
self._streams = StreamList(self._streams_frame)
def __init__(self, master=None):
super().__init__(master)
self.pack(expand=True, fill='both')
self._build_widgets()
self._streams = StreamList(self._streams_frame)