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Function main

DemoPrograms/Demo_Desktop_Widget_CPU_Top_Processes.py:31–90  ·  view source on GitHub ↗
()

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29
30
31def main():
32 global g_interval
33
34 location = sg.user_settings_get_entry('-location-', (None, None))
35
36 # ---------------- Create Form ----------------
37 sg.theme('Black')
38
39 layout = [[sg.Text(font=('Helvetica', 20), text_color=sg.YELLOWS[0], key='-CPU PERCENT-')],
40 [sg.Text(size=(35, 12), font=('Courier New', 12), key='-PROCESSES-')], # size will determine how many processes shown
41 [sg.Text('Update every '), sg.Spin([x+1 for x in range(10)], 3, key='-SPIN-'), sg.T('seconds')]]
42
43 window = sg.Window('Top CPU Processes', layout, no_titlebar=True, keep_on_top=True,location=location, use_default_focus=False, alpha_channel=.8, grab_anywhere=True, right_click_menu=sg.MENU_RIGHT_CLICK_EDITME_VER_EXIT, enable_close_attempted_event=True)
44
45 # start cpu measurement thread
46 # using the PySimpleGUI call to start and manage the thread
47 window.start_thread(lambda: CPU_thread(window), '-THREAD FINISHED-')
48 g_interval = 1
49 # Unusual construct of a Try around entire event loop... something is crashing, we need to find out what...
50 try:
51 # ---------------- main loop ----------------
52 while True:
53 # --------- Read and update window --------
54 event, values = window.read()
55 # print(event, values)
56 # --------- Do Button Operations --------
57 if event in (sg.WIN_CLOSE_ATTEMPTED_EVENT, 'Exit'):
58 sg.user_settings_set_entry('-location-', window.current_location()) # save window location before exiting
59 break
60 if event == 'Edit Me':
61 sp = sg.execute_editor(__file__)
62 elif event == 'Version':
63 sg.popup_scrolled(__file__, sg.get_versions(), keep_on_top=True, location=window.current_location())
64 elif event == '-CPU UPDATE FROM THREAD-': # indicates data from the thread has arrived
65 cpu_percent, procs = values[event] # the thread sends a tuple
66 if procs:
67 # --------- Create dictionary of top % CPU processes. Format is name:cpu_percent --------
68 top = {}
69 for proc in procs:
70 try:
71 top[proc.name()] = proc.cpu_percent()
72 except Exception as e:
73 pass # it's OK to get an exception here because processes come and go... one may have gone...
74 # sg.Print('*** GOT Exception looping through procs ***', c='white on red', font='_ 18')
75 # sg.Print('Exception = ', e, 'procs=', procs, 'proc', proc)
76
77 top_sorted = sorted(top.items(), key=operator.itemgetter(1), reverse=True) # reverse sort to get highest CPU usage on top
78 if top_sorted:
79 top_sorted.pop(0) # remove the idle process
80 display_string = '\n'.join([f'{cpu/10:2.2f} {proc:23}' for proc, cpu in top_sorted])
81 # --------- Display timer and proceses in window --------
82 window['-CPU PERCENT-'].update(f'CPU {cpu_percent}')
83 window['-PROCESSES-'].update(display_string)
84 # get the timeout from the spinner
85 g_interval = int(values['-SPIN-'])
86 except Exception as e:
87 sg.Print('*** GOT Exception in event loop ***', c='white on red', font='_ 18')
88 sg.Print('Exception = ', e, wait=True) # IMPORTANT to add a wait/blocking so that the print pauses execution. Otherwise program continue and exits

Calls 7

start_threadMethod · 0.95
readMethod · 0.95
current_locationMethod · 0.95
closeMethod · 0.95
PrintMethod · 0.80
CPU_threadFunction · 0.70
updateMethod · 0.45

Tested by

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