python tkinterでスクロールを実装した際に、スクロールバーにフレームが被さらない事、且つ、フレームが途切れるのを予防したい

Question

### FrameClass
class ClassFrame(tk.Frame):
    def __init__(self , master , bg = None , width = None , height = None):
        super().__init__(master , bg = bg , width = width , height = height)

### LeftFrameClass
class ClassLabelFrameLeft(tk.LabelFrame):
    def __init__(self , master , text = None , pad_x = None , pad_y = None , bg = None):
        super().__init__(master , text = text , padx = pad_x , pady = pad_y , bg = bg)

### CanvasClass
class ClassCanvas(tk.Canvas):
    def __init__(self , master , scroll_width , scroll_height , bg):
        super().__init__(master , bg = bg)
        bar_y = tk.Scrollbar(self , orient = tk.VERTICAL)
        bar_x = tk.Scrollbar(self , orient = tk.HORIZONTAL)
        #self.bind_all("<MouseWheel>" , lambda eve:self.yview_scroll(int(-eve.delta/120) , 'units'))
        bar_y.pack(side = tk.RIGHT , fill = tk.Y)
        bar_x.pack(side = tk.BOTTOM , fill = tk.X)
        bar_y.config(command = self.yview)
        bar_x.config(command = self.xview)
        self.config(yscrollcommand=bar_y.set , xscrollcommand=bar_x.set)
        self.config(scrollregion=(0 , 0 , scroll_width , scroll_height))
        self.xview_moveto(0)
        self.yview_moveto(0)

class Model():
    def __init__(self):
        self.width = 1000
        self.height = 600
        self.leftManu_scroll_max = ({"width": 110, "height": self.height + 300})
        self.leftManu_canvas_minimal = (self.leftManu_scroll_max['width'], self.leftManu_scroll_max['height'])

        self.rightFrame_scroll_max = {"width": self.width - self.leftManu_scroll_max['width'] - 38, "height": self.height + 1000}
        self.right_canvas_minimal = (self.rightFrame_scroll_max['width'], self.rightFrame_scroll_max['height'])

class View():
    def __init__(self, master, model):
        self.master = master
        self.model = model
        
        ### LeftMenu_Frame 
        leftFrame = ClassFrame(self.master, bg="snow", width=self.model.leftManu_scroll_max["width"] + 20)
        leftFrame.pack(side=tk.LEFT, expand=False, fill=tk.Y)
        ### canvas 
        self.left_canvas = ClassCanvas(leftFrame, scroll_width=self.model.leftManu_scroll_max["width"], scroll_height=self.model.leftManu_scroll_max["height"], bg="green")
        self.left_canvas.place(x=0 , y=0 , relheight=1 , relwidth=1)
        ### canvasFrame
        self.canvasLeftFrame = tk.Frame(self.left_canvas)
        self.left_canvas_conf = self.left_canvas.create_window((0,0), window=self.canvasLeftFrame, anchor=tk.NW, width=self.model.leftManu_scroll_max["width"], height=self.model.leftManu_scroll_max["height"])
        ### LeftManu_Item
        self.label_frame_left_menu = ClassLabelFrameLeft(self.canvasLeftFrame , text="MENU", pad_y=7 , bg='snow')
        self.label_frame_left_menu.place(x=0, y=0, width=self.model.leftManu_scroll_max["width"])
        leftBottons = ['sample1','sample2','sample3','sample4','sample5','sample6','sample7','sample8','sample9','sample10',
                        'sample11','sample12','sample13','sample14','sample15','sample16','sample17','sample18','sample19','sample20','sample21','sample22','sample23',]
        ### LeftFrameButton
        for text in leftBottons:
            left_button = tk.Button(self.label_frame_left_menu, text = text, command='')
            left_button.pack(anchor=tk.NW, fill=tk.X, padx=(10 , 10), pady=(0 , 10))

class Controller():
    def __init__(self, master, model, view):
        self.master = master
        self.model = model
        self.view = view
        def left_canvas_resize(event):
            self.view.left_canvas.itemconfigure(self.view.left_canvas_conf, width=event.width-19.5, height=event.height-19.5)
        self.view.left_canvas.bind("<Configure>", left_canvas_resize)

class Application(tk.Frame):
	def __init__(self, master):
		super().__init__(master)
		self.pack()
		self.model = Model()
		master.geometry(str(self.model.width) + "x" + str(self.model.height))
		master.title("tkinter template")
		self.view = View(master, self.model)
		self.controller = Controller(master, self.model, self.view)

def main():
	window = tk.Tk()
	app = Application(master=window)
	app.mainloop()

if __name__ == "__main__":
	main()