Embedding in Tk example: be more layout manager agnostic.

jmehne · jmehne · commit 9737747b3f34 · 2019-09-17T18:23:15.000+02:00
diff --git a/examples/user_interfaces/embedding_in_tk_sgskip.py b/examples/user_interfaces/embedding_in_tk_sgskip.py
@@ -26,7 +26,8 @@
 canvas = FigureCanvasTkAgg(fig, master=root)  # A tk.DrawingArea.
 canvas.draw()
 
-toolbar = NavigationToolbar2Tk(canvas, root)
+# pack_toolbar=False will make it easier to use a layout manager later on.
+toolbar = NavigationToolbar2Tk(canvas, root, pack_toolbar=False)
 toolbar.update()
 
 
@@ -44,6 +45,7 @@ def on_key_press(event):
 # The canvas is rather flexible in its size, so we pack it last which makes
 # sure the UI controls are displayed as long as possible.
 button.pack(side=tkinter.BOTTOM)
+toolbar.pack(side=tkinter.BOTTOM, fill=tkinter.X)
 canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)
 
 tkinter.mainloop()
diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
@@ -512,9 +512,9 @@ class NavigationToolbar2Tk(NavigationToolbar2, tk.Frame):
         The tk.Window which owns this toolbar.
     pack_toolbar : bool, default: True
         If True, add the toolbar to the parent's pack manager's packing list
-        during initialization with *side='bottom'* and *fill='x'*.
+        during initialization with ``side='bottom'`` and ``fill='x'``.
         If you want to use the toolbar with a different layout manager, use
-        *pack_toolbar=False*.
+        ``pack_toolbar=False``.
     """
     def __init__(self, canvas, window, *, pack_toolbar=True):
         self.canvas = canvas
