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    <p>'super' part here is only to properly call constructor of base class (the class you are inheriting from.) Let's consider following example:</p> <pre><code>class Device(): # class representing some drawing device ... def fill(self, color) ... # actual code for draw on this device screen = Device() WHITE_COLOR = (255, 255, 255) class Window(object): def __init__(self, width, height): self.width = width self.height = height def area(self): return self.width * self.height class ColoredWindow(Window): def __init__(width, height, color): super(ColoredWindow, self).__init__(width, height) self.color = color def fill(self): screen.fill(self.width, self.height, self.color) my_window = ColoredWindow(640, 480, WHITE_COLOR) my_window.fill() </code></pre> <p>The first class here, <code>Window</code>, is a generic window that has <code>width</code> and <code>height</code> attributes that are passed in constructor. <code>ColoredWindow</code> is a subscass of <code>Window</code>, it has additional attribute <code>color</code>. When <code>ColoredWindow</code> is constructed, it needs somehow pass <code>width</code> and <code>height</code> parameters to its baseclass <code>Window</code>.</p> <p>This is exactly what construction <code>super(ColoredWindow, self).__init__(width, height)</code> is for. The first part, <code>super(ColoredWindow, self)</code>, returns a reference to baseclass (<code>Window</code> in our case), and second part, <code>__init__(width, height)</code>, just calls its constructor with right parameters. </p> <p>In your example <code>master</code> is not called, it's just parameter to <code>__init__</code> method of <code>Application</code> class.</p>
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    1. POCan someone please explain how the second version of this code works?
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    1. USPalasaty
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    1. COThanks for your answer, it certainly helped me understand the coding
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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