Use super() in backend classes and examples.

Author: QuLogic

examples/user_interfaces/embedding_in_wx2_sgskip.py

@@ -20,8 +20,7 @@
 
 class CanvasFrame(wx.Frame):
     def __init__(self):
-        wx.Frame.__init__(self, None, -1,
-                          'CanvasFrame', size=(550, 350))
+        super().__init__(None, -1, 'CanvasFrame', size=(550, 350))
 
         self.figure = Figure()
         self.axes = self.figure.add_subplot(111)

examples/user_interfaces/embedding_in_wx3_sgskip.py

@@ -37,7 +37,7 @@
 
 class PlotPanel(wx.Panel):
     def __init__(self, parent):
-        wx.Panel.__init__(self, parent, -1)
+        super().__init__(parent, -1)
 
         self.fig = Figure((5, 4), 75)
         self.canvas = FigureCanvas(self, -1, self.fig)

examples/user_interfaces/embedding_in_wx4_sgskip.py

@@ -21,7 +21,7 @@ class MyNavigationToolbar(NavigationToolbar):
     """Extend the default wx toolbar with your own event handlers."""
 
     def __init__(self, canvas):
-        NavigationToolbar.__init__(self, canvas)
+        super().__init__(canvas)
         # We use a stock wx bitmap, but you could also use your own image file.
         bmp = wx.ArtProvider.GetBitmap(wx.ART_CROSS_MARK, wx.ART_TOOLBAR)
         tool = self.AddTool(wx.ID_ANY, 'Click me', bmp,
@@ -41,8 +41,7 @@ def _on_custom(self, event):
 
 class CanvasFrame(wx.Frame):
     def __init__(self):
-        wx.Frame.__init__(self, None, -1,
-                          'CanvasFrame', size=(550, 350))
+        super().__init__(None, -1, 'CanvasFrame', size=(550, 350))
 
         self.figure = Figure(figsize=(5, 4), dpi=100)
         self.axes = self.figure.add_subplot(111)

examples/user_interfaces/embedding_in_wx5_sgskip.py

@@ -17,7 +17,7 @@
 
 class Plot(wx.Panel):
     def __init__(self, parent, id=-1, dpi=None, **kwargs):
-        wx.Panel.__init__(self, parent, id=id, **kwargs)
+        super().__init__(parent, id=id, **kwargs)
         self.figure = mpl.figure.Figure(dpi=dpi, figsize=(2, 2))
         self.canvas = FigureCanvas(self, -1, self.figure)
         self.toolbar = NavigationToolbar(self.canvas)
@@ -31,7 +31,7 @@ def __init__(self, parent, id=-1, dpi=None, **kwargs):
 
 class PlotNotebook(wx.Panel):
     def __init__(self, parent, id=-1):
-        wx.Panel.__init__(self, parent, id=id)
+        super().__init__(parent, id=id)
         self.nb = aui.AuiNotebook(self)
         sizer = wx.BoxSizer()
         sizer.Add(self.nb, 1, wx.EXPAND)

examples/user_interfaces/fourier_demo_wx_sgskip.py

@@ -104,7 +104,7 @@ def setKnob(self, value):
 
 class FourierDemoFrame(wx.Frame):
     def __init__(self, *args, **kwargs):
-        wx.Frame.__init__(self, *args, **kwargs)
+        super().__init__(*args, **kwargs)
         panel = wx.Panel(self)
 
         # create the GUI elements

examples/user_interfaces/mathtext_wx_sgskip.py

@@ -40,7 +40,7 @@ def mathtext_to_wxbitmap(s):
 
 class CanvasFrame(wx.Frame):
     def __init__(self, parent, title):
-        wx.Frame.__init__(self, parent, -1, title, size=(550, 350))
+        super().__init__(parent, -1, title, size=(550, 350))
 
         self.figure = Figure()
         self.axes = self.figure.add_subplot(111)

examples/user_interfaces/wxcursor_demo_sgskip.py

@@ -16,7 +16,7 @@
 
 class CanvasFrame(wx.Frame):
     def __init__(self, ):
-        wx.Frame.__init__(self, None, -1, 'CanvasFrame', size=(550, 350))
+        super().__init__(None, -1, 'CanvasFrame', size=(550, 350))
 
         self.figure = Figure()
         self.axes = self.figure.add_subplot(111)

lib/matplotlib/backends/_backend_tk.py

@@ -77,7 +77,7 @@ class TimerTk(TimerBase):
 
     def __init__(self, parent, *args, **kwargs):
         self._timer = None
-        TimerBase.__init__(self, *args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.parent = parent
 
     def _timer_start(self):
@@ -90,7 +90,7 @@ def _timer_stop(self):
         self._timer = None
 
     def _on_timer(self):
-        TimerBase._on_timer(self)
+        super()._on_timer()
         # Tk after() is only a single shot, so we need to add code here to
         # reset the timer if we're not operating in single shot mode.  However,
         # if _timer is None, this means that _timer_stop has been called; so
@@ -263,13 +263,13 @@ def motion_notify_event(self, event):
         x = event.x
         # flipy so y=0 is bottom of canvas
         y = self.figure.bbox.height - event.y
-        FigureCanvasBase.motion_notify_event(self, x, y, guiEvent=event)
+        super().motion_notify_event(x, y, guiEvent=event)
 
     def enter_notify_event(self, event):
         x = event.x
         # flipy so y=0 is bottom of canvas
         y = self.figure.bbox.height - event.y
-        FigureCanvasBase.enter_notify_event(self, guiEvent=event, xy=(x, y))
+        super().enter_notify_event(guiEvent=event, xy=(x, y))
 
     def button_press_event(self, event, dblclick=False):
         x = event.x
@@ -284,8 +284,8 @@ def button_press_event(self, event, dblclick=False):
             elif num == 3:
                 num = 2
 
-        FigureCanvasBase.button_press_event(
-            self, x, y, num, dblclick=dblclick, guiEvent=event)
+        super().button_press_event(x, y, num,
+                                   dblclick=dblclick, guiEvent=event)
 
     def button_dblclick_event(self, event):
         self.button_press_event(event, dblclick=True)
@@ -304,14 +304,14 @@ def button_release_event(self, event):
             elif num == 3:
                 num = 2
 
-        FigureCanvasBase.button_release_event(self, x, y, num, guiEvent=event)
+        super().button_release_event(x, y, num, guiEvent=event)
 
     def scroll_event(self, event):
         x = event.x
         y = self.figure.bbox.height - event.y
         num = getattr(event, 'num', None)
         step = 1 if num == 4 else -1 if num == 5 else 0
-        FigureCanvasBase.scroll_event(self, x, y, step, guiEvent=event)
+        super().scroll_event(x, y, step, guiEvent=event)
 
     def scroll_event_windows(self, event):
         """MouseWheel event processor"""
@@ -399,7 +399,7 @@ class FigureManagerTk(FigureManagerBase):
     """
 
     def __init__(self, canvas, num, window):
-        FigureManagerBase.__init__(self, canvas, num)
+        super().__init__(canvas, num)
         self.window = window
         self.window.withdraw()
         self.set_window_title("Figure %d" % num)
@@ -804,7 +804,7 @@ def trigger(self, *args):
 
 class ConfigureSubplotsTk(backend_tools.ConfigureSubplotsBase):
     def __init__(self, *args, **kwargs):
-        backend_tools.ConfigureSubplotsBase.__init__(self, *args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.window = None
 
     def trigger(self, *args):

lib/matplotlib/backends/backend_agg.py

@@ -85,7 +85,7 @@ class RendererAgg(RendererBase):
     lock = threading.RLock()
 
     def __init__(self, width, height, dpi):
-        RendererBase.__init__(self)
+        super().__init__()
 
         self.dpi = dpi
         self.width = width

lib/matplotlib/backends/backend_cairo.py

@@ -131,7 +131,7 @@ def __init__(self, dpi):
         self.gc = GraphicsContextCairo(renderer=self)
         self.text_ctx = cairo.Context(
            cairo.ImageSurface(cairo.FORMAT_ARGB32, 1, 1))
-        RendererBase.__init__(self)
+        super().__init__()
 
     @cbook.deprecated("3.4")
     @property
@@ -338,14 +338,14 @@ class GraphicsContextCairo(GraphicsContextBase):
     }
 
     def __init__(self, renderer):
-        GraphicsContextBase.__init__(self)
+        super().__init__()
         self.renderer = renderer
 
     def restore(self):
         self.ctx.restore()
 
     def set_alpha(self, alpha):
-        GraphicsContextBase.set_alpha(self, alpha)
+        super().set_alpha(alpha)
         _alpha = self.get_alpha()
         rgb = self._rgb
         if self.get_forced_alpha():
@@ -391,7 +391,7 @@ def set_dashes(self, offset, dashes):
                 offset)
 
     def set_foreground(self, fg, isRGBA=None):
-        GraphicsContextBase.set_foreground(self, fg, isRGBA)
+        super().set_foreground(fg, isRGBA)
         if len(self._rgb) == 3:
             self.ctx.set_source_rgb(*self._rgb)
         else: