<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def place(self):
 """Place this container's canvas onto the parent container's canvas."""

        self.place_children()
        self.canvas.append(self.parent.canvas,
                           float(self.left), float(self.top))