On 21 Apr, 07:31, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote: > En Mon, 21 Apr 2008 00:57:38 -0300, globalrev <[EMAIL PROTECTED]> escribió: > > > > > On 21 Apr, 04:26, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote: > >> En Sun, 20 Apr 2008 20:24:04 -0300, globalrev <[EMAIL PROTECTED]> escribió: > > >> > i dont get the mainloop() in python. i mean i have written some > >> > programs, for example a calculator using tkinterGUI. > > >> What you call the "mainloop" is the event loop (or message loop) used by > >> event-driven applications as a way to dispatch all events as they happen > >> in the system. The concept is independent of Python/C++/whatever language > >> you choose. The key phrase is "event-driven > >> programming":http://en.wikipedia.org/wiki/Event_driven_programming > >> Tkinter provides an event-driven GUI framework. Simple CLI programs are > >> not event-driven, as your pseudo example above. > > >> > if i have some functions i wanna call to run the program and i wanna > >> > call them ina specific order and be able to call > >> > them from each other should this just be called in the mainloop and > >> > the mianloop then runs the "mainscript" top > >> > to bottom over and over? > > >> If you don't want or don't require a graphical user interface, just write > >> the functions you need and call them from the outermost section in your > >> script. > >> If you do require a GUI, you'll have to write the code in response to user > >> actions: when the user clicks here, do this; when the user chooses that > >> menu option, do that. > > > but what i mean i dont understand is sure i can bind a function to a > > buttonpress but if i have a def dox(): dododo > > and i call it with dox() in the mainscript it will be executed once, > > but not again. > > so what does the mainloop do, 1srt time it is executed it runs the > > mainscript then it it sits and wait s for commands? > > What's the "mainscript"? > The "mainloop" just waits for system events like: mouse movement, mouse > click, key pressed, key released, time elapsed, window is uncovered, etc. And > when any event arrives, it's dispatched to its registered handler. > Python executes whatever you wrote at the top level of the script you are > running, up to the root.mainloop() line. That function doesn't return until > the main window is closed; all the user interaction occurs inside that call. > Finally, execution resumes on the next line, if any. > I hope this answers your question; if not, try to be more specific. Maybe an > example of what you want to do. > > -- > Gabriel Genellina
ty everyone i get it now. -- http://mail.python.org/mailman/listinfo/python-list
