The issue This case involves a first amendment issue regarding the right of a city to limit expression.
Each has pros and cons, which is why Python has not converged on a standard. The one I will present in this chapter is Tkinter because I think it is the easiest to get started with.
Most of the concepts in this chapter apply to the other GUI modules, too. There are several books and web pages about Tkinter. I have written a module called Gui. It provides a simplified interface to the functions and classes in Tkinter.
The examples in this chapter are based on this module. Here is a simple example that creates and displays a Gui: It is an infinite loop; it runs until the user closes the window, or presses Control-C, or does something that causes the program to quit.
Widgets are the elements that make up a GUI; they include: A widget, containing text or an image, that performs an action when pressed. A region that can display lines, rectangles, circles and other shapes. A region where users can type text.
A widget that controls the visible part of another widget. A container, often invisible, that contains other widgets. The empty gray square you see when you create a Gui is a Frame. When you create a new widget, it is added to this Frame. The button that appears in the Frame is a graphical representation of this object; you can control the button by invoking methods on it.
These parameters are called options. If you add more widgets, the Frame grows to accommodate them. The method la creates a Label widget: The option that controls the behavior of a button is command. The value of command is a function that gets executed when the button is pressed.
For example, here is a function that creates a new Label: This kind of flow is characteristic of event-driven programming. User actions, like button presses and key strokes, are called events.
In event-driven programming, the flow of execution is determined by user actions rather than by the programmer. The challenge of event-driven programming is to construct a set of widgets and callbacks that work correctly or at least generate appropriate error messages for any sequence of user actions.
When the button is pressed it should create a second button. What happens if you press the buttons more than once?
The method ca creates a new Canvas: After you create a widget, you can still change the values of the options with the config method.
For example, the bg option changes the background color: The set of legal color names is different for different implementations of Python, but all implementations provide at least: For example, the Canvas method circle draws you guessed it a circle: This is different from some other graphics systems where the origin is in the upper left corner, with the y axis pointing down.
The fill option specifies that the circle should be filled in with red. The return value from circle is an Item object that provides methods for modifying the item on the canvas.
When the user presses the Button, it should draw a circle on the canvas. This example draws a blue rectangle with the lower left corner at the origin and the upper right corner at ,Case method approach to legal study Level 1 Why am I interested in science, we are a Common App essay tutoring service committed to helping college applicants find their voice and reach college admission officers.
In the social sciences and life sciences, a case study is a research method involving an up-close, in-depth, and detailed examination of a subject of study (the case), as . This lesson discusses a style of teaching and learning known as the Socratic method. You'll consider what makes this approach effective and why it can sometimes be uncomfortable.
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Here is a simple approach which will help you approach legal analysis of fact situations the way lawyers do. If you master this simple, five part technique through in-class practice and apply it to legal analysis of fact situations on the midterm and final exams you will be well on the way to good legal analysis.
The case method is a teaching approach that uses decision-forcing cases to put students in the role of people who were faced with difficult decisions at some point in the past.
It developed during the course of the twentieth-century from its origins in the casebook method of teaching law pioneered by Harvard legal scholar Christopher C.