How to set matplotlib graph into tkinter window

matplotlib_in_tkinter.py

import ctypes
import numpy as np
import tkinter
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2Tk
from matplotlib.figure import Figure


if __name__ == "__main__":
    ctypes.windll.shcore.SetProcessDpiAwareness(1)

    root = tkinter.Tk()
    root.title("matplotlib 埋め込み")

    #Graph data
    x = np.linspace(0, 2*np.pi, 400)
    y = np.sin(x)

    #Graph object
    fig = Figure(figsize=(5, 5), dpi=100)   #Figure
    ax = fig.add_subplot(1, 1, 1)           #Axes
    line, = ax.plot(x, y)                   #2DLine

    #set graph to tkinter
    canvas = FigureCanvasTkAgg(fig, root)
    toolbar = NavigationToolbar2Tk(canvas, root)
    canvas.get_tk_widget().pack()           #show graph

    root.mainloop()