Next message: [Tutor] serial data capture/event driven. This seems to me to be the essence of event-driven programming and thus I'm thinking the twisted python. JPG' alt='Python Event Driven Serial Podcast Photos' title='Python Event Driven Serial Podcast Photos' />Get the latest breaking news across the U. Visual Studio 2013 Product Key here. A mobster in therapy, having problems with his mother, was how The Sopranos initially sparked, according to creator David Chase,. Trans Mac Serial Key.

• • • • • • • • • • • • • • • Event Computing In computing an event is an action that is usually initiated outside the scope of a program and that is handled by a piece of code inside the program. Events include for example mouse clicks, mouse movements or a keystroke of a user, i.e. He or she presses a key on the keyboard.

Another source can be a hardware device such as a timer. A program or a script whose behaviour depends on events is said to be event-driven. This website is created by Bernd Klein from: Events Philosophically An Event is an occurrence regarded as a bare instant of space-time as contrasted with an object which fills space and has endurance. It can also be an occurrence regarded in isolation from, or contrasted with, human agency Compare act. We also like to thank Denise Mitchinson for providing the style sheet of this website. Search this website: Classroom Trainings This website contains a free and extensive online tutorial by Bernd Klein, using material from his live.

If you are interested in an instructor-led classroom training course, you may have a look at the by Bernd Klein at Bodenseo. You can attend one of his Python courses in Paris, London, Toronto, Berlin, Munich, Hamburg, Amsterdam, Den Haag (The Hague) or Lake Constance / Zurich. It is also possible to book an on-site training course at your company or institute. Quote of the Day: Man is the best computer we can put aboard a spacecraft.and the only one that can be mass produced with unskilled labor. (Wernher von Braun) Graphical User Interface A graphical user interface (GUI) is a type of user interface that allows users to interact with electronic devices in a graphical way, i.e. With images, rather than text commands.

Originally interactive user interfaces to computers were not graphical, they were text oriented and usually consisted of commands, which had to be remembered. The DOS operating system from Microsoft and the Bourne shell under Linux are examples of such user-computer interfaces. Previous Chapter: Events and Binds Introduction A Tkinter application runs most of its time inside an event loop, which is entered via the mainloop method. It waiting for events to happen. Events can be key presses or mouse operations by the user. Tkinter provides a mechanism to let the programmer deal with events.

For each widget, it's possible to bind Python functions and methods to an event. Widget.bind(event, handler) If the defined event occurs in the widget, the 'handler' function is called with an event object. Describing the event. #!/usr/bin/python3 # write tkinter as Tkinter to be Python 2.x compatible from tkinter import * def hello(event): print('Single Click, Button-l') def quit(event): print('Double Click, so let's stop') import sys; sys.exit() widget = Button(None, text='Mouse Clicks') widget.pack() widget.bind(', hello) widget.bind(', quit) widget.mainloop() Let's have another simple example, which shows how to use the motion event, i.e.

If the mouse is moved inside of a widget: from tkinter import * def motion(event): print('Mouse position: (%s%s)'% (event.x, event.y)) return master = Tk() whatever_you_do = 'Whatever you do will be insignificant, but it is very important that you do it. N(Mahatma Gandhi)' msg = Message(master, text = whatever_you_do) msg.config(bg='lightgreen', font=('times', 24, 'italic')) msg.bind(',motion) msg.pack() mainloop() Every time we move the mouse in the Message widget, the position of the mouse pointer will be printed. When we leave this widget, the function motion() is not called anymore. Events Tkinter uses so-called event sequences for allowing the user to define which events, both specific and general, he or she wants to bind to handlers. It is the first argument 'event' of the bind method.