I should have mentioned that you need the GitHub version of the code in order to get the keyboard events. Rather than do a pip install you can download this file and put it in your project folder:
https://github.com/MikeTheWatchGuy/PySimpleGUI/blob/master/PySimpleGUI.py Sorry for any confusion. I also got a question if this code blocks or is in a spin-loop. The answer is that the posted version blocks until some kind of form input. Should you want to turn the program into one that polls instead of blocks, the loop changes slightly to enable form close detection. It's basically the same with the Read call being replaced by ReadNonBlocking. while True: button, values = form.ReadNonBlocking() if button is None and values is None: break a, b = values try: output.Update(int(a) + int(b)) except: pass @mike -----Original Message----- From: Mike Barnett <mike_barn...@hotmail.com> Sent: Friday, August 24, 2018 3:36 PM To: Chris Angelico <ros...@gmail.com>; Python-Ideas <python-ideas@python.org> Subject: RE: [Python-ideas] A GUI for beginners and experts alike So here's my alternative challenge: Take two numbers as inputs. Add them together and display them in a third field. Whenever either input is changed, recalculate the output. This requires proper event handling, so it's less likely to create a useless one-liner that has no bearing on real-world code. ------------------------------------ Sure thing... post yours. I'll go ahead and post mine first. Here's the window this code produces. https://user-images.githubusercontent.com/13696193/44604157-02a2ac00-a7b3-11e8-928b-f67c5f2b3961.jpg And here's the code in a more readable form since the email formatting sucks. https://user-images.githubusercontent.com/13696193/44604220-2cf46980-a7b3-11e8-86c5-ad3051222eaf.jpg It's rather, uhm, simple to do.... import PySimpleGUI as gui output = gui.Text('') layout = [ [gui.Text('Enter 2 numbers')], [gui.Text('A'), gui.InputText()], [gui.Text('B'), gui.InputText()], [gui.Text('Answer = '), output], ] form = gui.FlexForm('Realtime Updates', return_keyboard_events=True) form.LayoutAndRead(layout) while True: button, (a,b) = form.Read() try: answer = int(a) + int(b) output.Update(answer) except: pass @mike _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
