Description
In order to access variables in both the start and the loop of an object,
you need to declare variables using the self parameter. To understand why, you must understand how Python objects are created within PixelPAD.
Every PixelPAD object has default functions, start() and loop(). These functions are just visually represented by the start and loop tabs for convenience.
In Python, any variable declared within any function belongs only to that function. So, if you wanted to use a variable across different functions,
like in the case of using a variable across start() or loop(), you must declare that this variable belongs to the class by using
the self. parameter.
