matplotlib · efiring · Jan 10, 2018 · Oct 2, 2017 · Oct 3, 2017 · Oct 3, 2017
diff --git a/examples/animation/simple_anim.py b/examples/animation/simple_anim.py
@@ -16,7 +16,7 @@
 
 
 def animate(i):
-    line.set_ydata(np.sin(x + i/10.0))  # update the data
+    line.set_ydata(np.sin(x + i / 100))  # update the data
     return line,
 
 
@@ -25,6 +25,6 @@ def init():
     line.set_ydata(np.ma.array(x, mask=True))
     return line,
 
-ani = animation.FuncAnimation(fig, animate, np.arange(1, 200), init_func=init,
-                              interval=25, blit=True)
+ani = animation.FuncAnimation(
+    fig, animate, init_func=init, interval=2, blit=True)
 plt.show()
diff --git a/examples/user_interfaces/embedding_in_tk2_sgskip.py b/examples/user_interfaces/embedding_in_tk2_sgskip.py
diff --git a/examples/user_interfaces/embedding_in_tk_sgskip.py b/examples/user_interfaces/embedding_in_tk_sgskip.py
@@ -4,60 +4,51 @@
 ===============
 
 """
-import matplotlib
-matplotlib.use('TkAgg')
-
-from numpy import arange, sin, pi
-from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
-# implement the default mpl key bindings
-from matplotlib.backend_bases import key_press_handler
 
+from six.moves import tkinter as Tk
 
+from matplotlib.backends.backend_tkagg import (
+    FigureCanvasTkAgg, NavigationToolbar2TkAgg)
+# Implement the default Matplotlib key bindings.
+from matplotlib.backend_bases import key_press_handler
 from matplotlib.figure import Figure
 
-import sys
-if sys.version_info[0] < 3:
-    import Tkinter as Tk
-else:
-    import tkinter as Tk
-
-root = Tk.Tk()
-root.wm_title("Embedding in TK")
+import numpy as np
 
 
-f = Figure(figsize=(5, 4), dpi=100)
-a = f.add_subplot(111)
-t = arange(0.0, 3.0, 0.01)
-s = sin(2*pi*t)
-
-a.plot(t, s)
+root = Tk.Tk()
+root.wm_title("Embedding in Tk")
 
+fig = Figure(figsize=(5, 4), dpi=100)
+t = np.arange(0, 3, .01)
+fig.add_subplot(111).plot(t, 2 * np.sin(2 * np.pi * t))
 
-# a tk.DrawingArea
-canvas = FigureCanvasTkAgg(f, master=root)
-canvas.show()
+canvas = FigureCanvasTkAgg(fig, master=root)  # A tk.DrawingArea.
+canvas.draw()
 canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
 
 toolbar = NavigationToolbar2TkAgg(canvas, root)
 toolbar.update()
 canvas._tkcanvas.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
 
 
-def on_key_event(event):
-    print('you pressed %s' % event.key)
+def on_key_press(event):
+    print("you pressed {}".format(event.key))
     key_press_handler(event, canvas, toolbar)
 
-canvas.mpl_connect('key_press_event', on_key_event)
+
+canvas.mpl_connect("key_press_event", on_key_press)
 
 
 def _quit():
     root.quit()     # stops mainloop
     root.destroy()  # this is necessary on Windows to prevent
                     # Fatal Python Error: PyEval_RestoreThread: NULL tstate
 
-button = Tk.Button(master=root, text='Quit', command=_quit)
+
+button = Tk.Button(master=root, text="Quit", command=_quit)
 button.pack(side=Tk.BOTTOM)
 
 Tk.mainloop()
-# If you put root.destroy() here, it will cause an error if
-# the window is closed with the window manager.
+# If you put root.destroy() here, it will cause an error if the window is
+# closed with the window manager.
diff --git a/lib/matplotlib/backends/backend_tkagg.py b/lib/matplotlib/backends/backend_tkagg.py
@@ -231,7 +231,7 @@ def resize(self, event):
             master=self._tkcanvas, width=int(width), height=int(height))
         self._tkcanvas.create_image(int(width/2),int(height/2),image=self._tkphoto)
         self.resize_event()
-        self.show()
+        self.draw()
 
         # a resizing will in general move the pointer position
         # relative to the canvas, so process it as a motion notify
@@ -307,10 +307,12 @@ def draw(self):
         self._master.update_idletasks()
 
     def blit(self, bbox=None):
-        tkagg.blit(self._tkphoto, self.renderer._renderer, bbox=bbox, colormode=2)
+        tkagg.blit(
+            self._tkphoto, self.renderer._renderer, bbox=bbox, colormode=2)
         self._master.update_idletasks()
 
-    show = draw
+    show = cbook.deprecated("2.2", name="FigureCanvasTkAgg.show",
+                            alternative="FigureCanvasTkAgg.draw")(draw)
 
     def draw_idle(self):
         'update drawing area only if idle'
@@ -536,6 +538,8 @@ def resize(self, width, height=None):
 
         # when a single parameter is given, consider it as a event
         if height is None:
+            cbook.warn_deprecated("2.2", "FigureManagerTkAgg.resize now takes "
+                                  "width and height as separate arguments")
             width = width.width
         else:
             self.canvas._tkcanvas.master.geometry("%dx%d" % (width, height))
@@ -555,8 +559,6 @@ def destroy(*args):
                 Gcf.destroy(self._num)
             self.canvas._tkcanvas.bind("<Destroy>", destroy)
             self.window.deiconify()
-            # anim.py requires this
-            self.window.update()
         else:
             self.canvas.draw_idle()
         # Raise the new window.
@@ -738,8 +740,8 @@ def configure_subplots(self):
         window = Tk.Toplevel()
         canvas = FigureCanvasTkAgg(toolfig, master=window)
         toolfig.subplots_adjust(top=0.9)
-        canvas.tool =  SubplotTool(self.canvas.figure, toolfig)
-        canvas.show()
+        canvas.tool = SubplotTool(self.canvas.figure, toolfig)
+        canvas.draw()
         canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
         window.grab_set()
 
@@ -1021,7 +1023,7 @@ def init_window(self):
         canvas = FigureCanvasTkAgg(toolfig, master=self.window)
         toolfig.subplots_adjust(top=0.9)
         _tool = SubplotTool(self.figure, toolfig)
-        canvas.show()
+        canvas.draw()
         canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
         self.window.protocol("WM_DELETE_WINDOW", self.destroy)