NEW Demo - Process killer

Demo_psutil_Kill_Processes.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python
+import sys
+import sys
+if sys.version_info[0] >= 3:
+    import PySimpleGUI as sg
+else:
+    import PySimpleGUI27 as sg
+import os
+import signal
+import psutil
+import operator
+
+
+"""
+"""
+
+
+
+
+def kill_proc_tree(pid, sig=signal.SIGTERM, include_parent=True,
+                   timeout=None, on_terminate=None):
+    """Kill a process tree (including grandchildren) with signal
+    "sig" and return a (gone, still_alive) tuple.
+    "on_terminate", if specified, is a callabck function which is
+    called as soon as a child terminates.
+    """
+    if pid == os.getpid():
+        raise RuntimeError("I refuse to kill myself")
+    parent = psutil.Process(pid)
+    children = parent.children(recursive=True)
+    if include_parent:
+        children.append(parent)
+    for p in children:
+        p.send_signal(sig)
+    gone, alive = psutil.wait_procs(children, timeout=timeout,
+                                    callback=on_terminate)
+    return (gone, alive)
+
+
+def main():
+
+    # ----------------  Create Form  ----------------
+    # sg.ChangeLookAndFeel('Dark')
+    layout = [[sg.Text('Process Killer - Choose one or more processes',
+                       size=(45,1), font=('Helvetica', 15))],
+                 [sg.Listbox(values=[], size=(50, 30), select_mode=sg.SELECT_MODE_EXTENDED,  font=('Courier', 12), key='_processes_')],
+              [sg.Text('Click refresh once or twice.. once for list, second to get CPU usage')],
+                [sg.RButton('Refresh'), sg.RButton('Kill', button_color=('white','red')),
+                 sg.Exit(button_color=('white', 'firebrick4'))]]
+
+    window = sg.Window('Process Killer',
+                       keep_on_top=True,
+                       auto_size_buttons=False,
+                       default_button_element_size=(9,1),
+                       grab_anywhere=False).Layout(layout)
+
+
+    # ----------------  main loop  ----------------
+    while (True):
+        # --------- Read and update window --------
+        button, values = window.Read()
+
+        # --------- Do Button Operations --------
+        if values is None or button == 'Exit':
+            break
+
+        if button == 'Refresh':
+            psutil.cpu_percent(interval=1)
+            procs = psutil.process_iter()
+            top = {proc.name(): (proc.cpu_percent(), proc.pid) for proc in procs}
+
+            # cpu_percent = psutil.cpu_percent(interval=interval)       # if don't wan to use a task
+
+            display_string = ''
+            # --------- Create list of top % CPU porocesses --------
+
+            top_sorted = sorted(top.items(), key=operator.itemgetter(0), reverse=False)
+            if top_sorted:
+                top_sorted.pop(0)
+            display_string = []
+            for proc, pair in top_sorted:
+                cpu, pid = pair
+                display_string.append('{:5d} {:5.2f}  {}\n'.format(pid, cpu/10, proc))
+
+            window.FindElement('_processes_').Update(display_string)
+
+        if button == 'Kill':
+            processes_to_kill = values['_processes_']
+            for proc in processes_to_kill:
+                pid = int(proc[0:5])
+                if sg.PopupYesNo('About to kill {} {}'.format(pid, proc[13:]), keep_on_top=True) == 'Yes':
+                    kill_proc_tree(pid=pid)
+
+
+if __name__ == "__main__":
+    main()