Demo/tkinter/guido/svkill.py

   1 #! /usr/bin/env python
   2
   3 # Tkinter interface to SYSV `ps' and `kill' commands.
   4
   5 from Tkinter import *
   6
   7 if TkVersion < 4.0:
   8         raise ImportError, "This version of svkill requires Tk 4.0 or later"
   9
  10 from string import splitfields
  11 from string import split
  12 import commands
  13 import os
  14
  15 user = os.environ['LOGNAME']
  16
  17 class BarButton(Menubutton):
  18         def __init__(self, master=None, **cnf):
  19                 apply(Menubutton.__init__, (self, master), cnf)
  20                 self.pack(side=LEFT)
  21                 self.menu = Menu(self, name='menu')
  22                 self['menu'] = self.menu
  23
  24 class Kill(Frame):
  25         # List of (name, option, pid_column)
  26         view_list = [
  27                 ('Default', ''),
  28                 ('Every (-e)', '-e'),
  29                 ('Non process group leaders (-d)', '-d'),
  30                 ('Non leaders with tty (-a)', '-a'),
  31                 ('For this user (-u %s)' % user, '-u %s' % user),
  32                 ]
  33         format_list = [
  34                 ('Default', '', 0),
  35                 ('Long (-l)', '-l', 3),
  36                 ('Full (-f)', '-f', 1),
  37                 ('Full Long (-f -l)', '-l -f', 3),
  38                 ('Session and group ID (-j)', '-j', 0),
  39                 ('Scheduler properties (-c)', '-c', 0),
  40                 ]
  41         def kill(self, selected):
  42                 c = self.format_list[self.format.get()][2]
  43                 pid = split(selected)[c]
  44                 os.system('kill -9 ' + pid)
  45                 self.do_update()
  46         def do_update(self):
  47                 format = self.format_list[self.format.get()][1]
  48                 view = self.view_list[self.view.get()][1]
  49                 s = commands.getoutput('ps %s %s' % (view, format))
  50                 list = splitfields(s, '\n')
  51                 self.header.set(list[0] + '          ')
  52                 del list[0]
  53                 self.frame.list.delete(0, AtEnd())
  54                 for line in list:
  55                         self.frame.list.insert(0, line)
  56         def do_motion(self, e):
  57                 e.widget.select_clear('0', 'end')
  58                 e.widget.select_set(e.widget.nearest(e.y))
  59         def do_leave(self, e):
  60                 e.widget.select_clear('0', 'end')
  61         def do_1(self, e):
  62                 self.kill(e.widget.get(e.widget.nearest(e.y)))
  63         def __init__(self, master=None, **cnf):
  64                 apply(Frame.__init__, (self, master), cnf)
  65                 self.pack(expand=1, fill=BOTH)
  66                 self.bar = Frame(self, name='bar', relief=RAISED,
  67                                  borderwidth=2)
  68                 self.bar.pack(fill=X)
  69                 self.bar.file = BarButton(self.bar, text='File')
  70                 self.bar.file.menu.add_command(
  71                         label='Quit', command=self.quit)
  72                 self.bar.view = BarButton(self.bar, text='View')
  73                 self.bar.format = BarButton(self.bar, text='Format')
  74                 self.view = IntVar(self)
  75                 self.view.set(0)
  76                 self.format = IntVar(self)
  77                 self.format.set(0)
  78                 for num in range(len(self.view_list)):
  79                         label, option = self.view_list[num]
  80                         self.bar.view.menu.add_radiobutton(
  81                                 label=label,
  82                                 command=self.do_update,
  83                                 variable=self.view,
  84                                 value=num)
  85                 for num in range(len(self.format_list)):
  86                         label, option, col = self.format_list[num]
  87                         self.bar.format.menu.add_radiobutton(
  88                                 label=label,
  89                                 command=self.do_update,
  90                                 variable=self.format,
  91                                 value=num)
  92                 self.bar.tk_menuBar(self.bar.file,
  93                                     self.bar.view,
  94                                     self.bar.format)
  95                 self.frame = Frame(self, relief=RAISED, borderwidth=2)
  96                 self.frame.pack(expand=1, fill=BOTH)
  97                 self.header = StringVar(self)
  98                 self.frame.label = Label(
  99                         self.frame, relief=FLAT, anchor=NW, borderwidth=0,
 100                         font='*-Courier-Bold-R-Normal-*-120-*',
 101                         textvariable=self.header)
 102                 self.frame.label.pack(fill=Y, anchor=W)
 103                 self.frame.vscroll = Scrollbar(self.frame, orient=VERTICAL)
 104                 self.frame.list = Listbox(
 105                         self.frame,
 106                         relief=SUNKEN,
 107                         font='*-Courier-Medium-R-Normal-*-120-*',
 108                         width=40, height=10,
 109                         selectbackground='#eed5b7',
 110                         selectborderwidth=0,
 111                         selectmode=BROWSE,
 112                         yscroll=self.frame.vscroll.set)
 113                 self.frame.vscroll['command'] = self.frame.list.yview
 114                 self.frame.vscroll.pack(side=RIGHT, fill=Y)
 115                 self.frame.list.pack(expand=1, fill=BOTH)
 116                 self.update = Button(self, text='Update',
 117                                      command=self.do_update)
 118                 self.update.pack(fill=X)
 119                 self.frame.list.bind('<Motion>', self.do_motion)
 120                 self.frame.list.bind('<Leave>', self.do_leave)
 121                 self.frame.list.bind('<1>', self.do_1)
 122                 self.do_update()
 123
 124 if __name__ == '__main__':
 125         kill = Kill(None, borderwidth=5)
 126         kill.winfo_toplevel().title('Tkinter Process Killer (SYSV)')
 127         kill.winfo_toplevel().minsize(1, 1)
 128         kill.mainloop()