Reworked to use the newer PySimpleGUI constructs - save window position, thread management, thread communications... it greatly simplified the code cutting the length considerably

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PySimpleGUI 2022-03-08 10:03:32 -05:00
parent 64f7615a25
commit 4670576430
1 changed files with 45 additions and 70 deletions

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@ -2,104 +2,79 @@
import PySimpleGUI as sg
import psutil
import time
from threading import Thread
import operator
import sys
"""
PSUTIL Desktop Widget
Creates a floating CPU utilization window that is always on top of other windows
You move it by grabbing anywhere on the window
Good example of how to do a non-blocking, polling program using PySimpleGUI
Use the spinner to adjust the number of seconds between readings of the CPU utilizaiton
PSUTIL "Top" CPU Processes - Desktop Widget
NOTE - you will get a warning message printed when you exit using exit button.
It will look something like:
invalid command name "1616802625480StopMove"
Creates a floating CPU utilization window running something similar to a "top" command.
Use the spinner to adjust the number of seconds between readings of the CPU utilizaiton
Rather than calling the threading module this program uses the PySimpleGUI perform_long_operation method.
The result is similar. The function is run as a thread... the call is simply wrapped.
Copyright 2022 PySimpleGUI
"""
# globale used to communicate with thread.. yea yea... it's working fine
g_interval = 1
g_cpu_percent = 0
g_procs = None
g_exit = False
# global used to communicate with thread.
g_interval = 1 # how often to poll for CPU usage
def CPU_thread(args):
global g_interval, g_cpu_percent, g_procs, g_exit
def CPU_thread(window:sg.Window):
while not g_exit:
try:
g_cpu_percent = psutil.cpu_percent(interval=g_interval)
g_procs = psutil.process_iter()
except:
pass
while True:
cpu_percent = psutil.cpu_percent(interval=g_interval)
procs = psutil.process_iter()
window.write_event_value('-CPU UPDATE-', (cpu_percent, procs))
def main(location):
global g_interval, g_procs, g_exit
def main():
global g_interval
location = sg.user_settings_get_entry('-location-', (None, None))
# ---------------- Create Form ----------------
sg.theme('Black')
layout = [
[sg.Text('', size=(8, 1), font=('Helvetica', 20),
text_color=sg.YELLOWS[0], justification='center', key='text')],
layout = [[sg.Text('', size=(8, 1), font=('Helvetica', 20),
text_color=sg.YELLOWS[0], justification='center', key='text'), sg.Push(), sg.Text('', enable_events=True, key='Exit')],
[sg.Text('', size=(30, 8), font=('Courier New', 12),
text_color='white', justification='left', key='processes')],
[sg.Text('Update every '),
sg.Spin([x+1 for x in range(10)], 3, key='spin'), sg.T('seconds '),
sg.Text('', enable_events=True, key='Exit')
]
]
[sg.Text('Update every '), sg.Spin([x+1 for x in range(10)], 3, key='spin'), sg.T('seconds ')]]
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_EXIT)
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_EXIT, enable_close_attempted_event=True)
# start cpu measurement thread
thread = Thread(target=CPU_thread, args=(None,))
thread.start()
timeout_value = 1 # make first read really quick
# using the PySimpleGUI call to start and manage the thread
window.perform_long_operation(lambda: CPU_thread(window), '-THREAD FINISHED-')
g_interval = 1
# ---------------- main loop ----------------
while True:
# --------- Read and update window --------
event, values = window.read(timeout_value)
event, values = window.read()
# --------- Do Button Operations --------
if event in (sg.WIN_CLOSED, 'Exit'):
if event in (sg.WIN_CLOSE_ATTEMPTED_EVENT, 'Exit'):
sg.user_settings_set_entry('-location-', window.current_location()) # save window location before exiting
break
elif event == 'Edit Me':
sg.execute_editor(__file__)
timeout_value = int(values['spin']) * 1000 # for now on, use spinner for timeout
g_interval = int(values['spin'])
cpu_percent = g_cpu_percent
display_string = ''
if g_procs:
# --------- Create list of top % CPU porocesses --------
try:
top = {proc.name(): proc.cpu_percent() for proc in g_procs}
except:
pass
elif event == '-CPU UPDATE-': # indicates data from the thread has arrived
cpu_percent, procs = values[event] # the thread sends a tuple
if procs:
# --------- Create dictionary of top % CPU processes. Format is name:cpu_percent --------
top = {proc.name(): proc.cpu_percent() for proc in procs}
top_sorted = sorted(
top.items(), key=operator.itemgetter(1), reverse=True)
top_sorted = sorted(top.items(), key=operator.itemgetter(1), reverse=True) # reverse sort to get highest CPU usage on top
if top_sorted:
top_sorted.pop(0)
display_string = ''
for proc, cpu in top_sorted:
display_string += '{:2.2f} {}\n'.format(cpu/10, proc)
top_sorted.pop(0) # remove the idle process
display_string = '\n'.join([f'{cpu/10:2.2f} {proc}' for proc, cpu in top_sorted])
# --------- Display timer and proceses in window --------
window['text'].update('CPU ' + str(cpu_percent))
window['text'].update(f'CPU {cpu_percent}')
window['processes'].update(display_string)
g_exit = True
thread.join()
# get the timeout from the spinner
g_interval = int(values['spin'])
window.close()
if __name__ == '__main__':
if len(sys.argv) > 1:
location = sys.argv[1].split(',')
location = (int(location[0]), int(location[1]))
else:
location = (None, None)
main(location)
main()