--- Pmw-2.1.1/Pmw/Pmw_2_1_1/doc/exercises.orig.py	2024-01-16 20:29:25.109576174 +0200
+++ Pmw-2.1.1/Pmw/Pmw_2_1_1/doc/exercises.py	2024-01-16 20:41:17.246644768 +0200
@@ -1,10 +1,10 @@
-import tkinter 
+import tkinter
 import Pmw
- 
+
 class ThresholdScale(Pmw.MegaWidget):
     """ Megawidget containing a scale and an indicator.
     """
- 
+
     def __init__(self, parent = None, **kw):
         # Define the megawidget options.
         optiondefs = (
@@ -16,13 +16,13 @@
 	    ('value',       None,             Pmw.INITOPT),
         )
         self.defineoptions(kw, optiondefs)
- 
+
         # Initialise base class (after defining options).
         Pmw.MegaWidget.__init__(self, parent)
- 
+
         # Create the components.
         interior = self.interior()
- 
+
         # Create the indicator component.
         self.indicator = self.createcomponent('indicator',
                 (), None,
@@ -31,69 +31,69 @@
 			height = 16,
 			borderwidth = 2,
 			relief = 'raised')
- 
+
         # Create the value component.
         self.value = self.createcomponent('value',
                 (), None,
                 tkinter.Label, interior,
 		    width = 3)
- 
+
         # Create the scale component.
-	if self['orient'] == 'vertical':
-	    # The default scale range seems to be
-	    # the wrong way around - reverse it.
-	    from_ = 100
-	    to = 0
-	else:
-	    from_ = 0
-	    to = 100
+        if self['orient'] == 'vertical':
+            # The default scale range seems to be
+            # the wrong way around - reverse it.
+            from_ = 100
+            to = 0
+        else:
+            from_ = 0
+            to = 100
 
-        self.scale = self.createcomponent('scale',
-                (), None,
-                tkinter.Scale, interior,
-			orient = self['orient'],
-			command = self._doCommand,
-			tickinterval = 20,
-			length = 200,
-			from_ = from_,
-			to = to,
-			showvalue = 0)
- 
-        value = self['value']
-        if value is not None:
-            self.scale.set(value)
- 
-	# Use grid to position all components
-	if self['orient'] == 'vertical':
-	    self.indicator.grid(row = 1, column = 1)
-	    self.value.grid(row = 2, column = 1)
-	    self.scale.grid(row = 3, column = 1)
-	    # Create the label.
-	    self.createlabel(interior, childRows=3)
-	else:
-	    self.indicator.grid(row = 1, column = 1)
-	    self.value.grid(row = 1, column = 2)
-	    self.scale.grid(row = 1, column = 3)
-	    # Create the label.
-	    self.createlabel(interior, childCols=3)
+            self.scale = self.createcomponent('scale',
+                    (), None,
+                    tkinter.Scale, interior,
+                orient = self['orient'],
+                command = self._doCommand,
+                tickinterval = 20,
+                length = 200,
+                from_ = from_,
+                to = to,
+                showvalue = 0)
+
+            value = self['value']
+            if value is not None:
+                self.scale.set(value)
 
-        # Check keywords and initialise options.
-        self.initialiseoptions()
+        # Use grid to position all components
+        if self['orient'] == 'vertical':
+            self.indicator.grid(row = 1, column = 1)
+            self.value.grid(row = 2, column = 1)
+            self.scale.grid(row = 3, column = 1)
+            # Create the label.
+            self.createlabel(interior, childRows=3)
+        else:
+            self.indicator.grid(row = 1, column = 1)
+            self.value.grid(row = 1, column = 2)
+            self.scale.grid(row = 1, column = 3)
+            # Create the label.
+            self.createlabel(interior, childCols=3)
+
+            # Check keywords and initialise options.
+            self.initialiseoptions()
 
     def _doCommand(self, valueStr):
-	valueInt = self.scale.get()
-	colors = self['colors']
-	thresholds = self['threshold']
-	color = colors[-1]
-	for index in range(len(colors) - 1):
-	    if valueInt <= thresholds[index]:
-		color = colors[index]
-		break
-	self.indicator.configure(background = color)
-	self.value.configure(text = valueStr)
+        valueInt = self.scale.get()
+        colors = self['colors']
+        thresholds = self['threshold']
+        color = colors[-1]
+        for index in range(len(colors) - 1):
+            if valueInt <= thresholds[index]:
+                color = colors[index]
+                break
+        self.indicator.configure(background = color)
+        self.value.configure(text = valueStr)
 
 Pmw.forwardmethods(ThresholdScale, tkinter.Scale, 'scale')
- 
+
 # Initialise tkinter and Pmw.
 root = Pmw.initialise()
 root.title('Pmw ThresholdScale demonstration')