Major update of all demo programs to use new PEP8 bindings, etc

DemoPrograms/Demo_Timer.py

@@ -1,44 +1,41 @@
 import PySimpleGUI as sg
 import time
 
-# form that doen't block
-# good for applications with an loop that polls hardware
+# Basic timer in PSG
+
 def Timer():
-    sg.ChangeLookAndFeel('Dark')
-    sg.SetOptions(element_padding=(0,0))
-    # Make a form, but don't use context manager
-    window = sg.Window('Running Timer', no_titlebar=True, auto_size_buttons=False)
-    # Create a text element that will be updated with status information on the GUI itself
-    # Create the rows
-    form_rows = [[sg.Text('')],
-                 [sg.Text('', size=(8, 2), font=('Helvetica', 20), justification='center', key='text')],
-                 [sg.Button('Pause', key='-RUN-PAUSE-'), sg.Button('Reset'), sg.Exit(button_color=('white','firebrick4'))]]
-    # Layout the rows of the form and perform a read. Indicate the form is non-blocking!
-    window.Layout(form_rows)
-    #
-    # your program's main loop
+    sg.change_look_and_feel('Dark')
+    sg.set_options(element_padding=(0, 0))
+    form_rows = [[sg.Text(size=(8, 2), font=('Helvetica', 20),
+                       justification='center', key='text')],
+                 [sg.Button('Pause', key='-RUN-PAUSE-'),
+                 sg.Button('Reset'),
+                 sg.Exit(button_color=('white', 'firebrick4'))]]
+    window = sg.Window('Running Timer', form_rows,
+                       no_titlebar=True, auto_size_buttons=False)
     i = 0
     paused = False
     start_time = int(round(time.time() * 100))
-    while (True):
+
+    while True:
         # This is the code that reads and updates your window
         button, values = window.read(timeout=0)
-        window.FindElement('text').Update('{:02d}:{:02d}.{:02d}'.format((i // 100) // 60, (i // 100) % 60, i % 100))
+        window['text'].update('{:02d}:{:02d}.{:02d}'.format(
+            (i // 100) // 60, (i // 100) % 60, i % 100))
 
         if values is None or button == 'Exit':
             break
 
         if button == 'Reset':
-            i=0
+            i = 0
+
         elif button == '-RUN-PAUSE-':
             paused = not paused
-            window['-RUN-PAUSE-'].Update('Run' if paused else 'Pause')
+            window['-RUN-PAUSE-'].update('Run' if paused else 'Pause')
 
         if not paused:
             i += 1
 
-
-    # Broke out of main loop. Close the window.
     window.close()
 
-Timer()
+Timer()