当我运行以下脚本时:
我收到一个警告:
为什么
import tkinter as tk
import matplotlib
import matplotlib.pyplot as plt
import matplotlib.figure
import matplotlib.backends.backend_tkagg
import numpy as np
def on_key_event(event, canvas, toolbar):
matplotlib.backend_bases.key_press_handler(event, canvas, toolbar)
matplotlib.use('TkAgg')
root = tk.Tk()
root.wm_title('Test window')
fig = matplotlib.figure.Figure(figsize=(9.333, 7), dpi=100)
a = fig.add_subplot(111)
axes = fig.gca()
x = np.linspace(0, 2*np.pi, 100)
axes.plot(x, np.sin(x), marker='.')
axes.set_title('sin(x)')
axes.grid()
canvas = matplotlib.backends.backend_tkagg.FigureCanvasTkAgg(fig, master=root)
canvas.draw()
canvas.get_tk_widget().pack(fill=tk.X, expand=1)
canvas.mpl_connect(
'key_press_event',
lambda event: on_key_event(event, canvas, toolbar)
)
toolbar = matplotlib.backends.backend_tkagg.NavigationToolbar2TkAgg(
canvas, root
)
toolbar.update()
root.bind('<Control-w>', lambda event: root.destroy())
tk.mainloop()
我收到一个警告:
MatplotlibDeprecationWarning: The NavigationToolbar2TkAgg class was
deprecated in version 2.2.
为什么
NavigationToolbar2TkAg
被弃用了,我应该使用什么替代品?
alternative
字段,可以用来指向废弃函数/类等的替代方案(例如参见这里)。不幸的是,在这种情况下没有使用。 - ImportanceOfBeingErnest