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/Demo/tkinter/guido/svkill.py

http://unladen-swallow.googlecode.com/
Python | 128 lines | 117 code | 8 blank | 3 comment | 3 complexity | 74fb0b21aa2a8354d2d284d3c79a52fb MD5 | raw file
  1#! /usr/bin/env python
  2
  3# Tkinter interface to SYSV `ps' and `kill' commands.
  4
  5from Tkinter import *
  6
  7if TkVersion < 4.0:
  8    raise ImportError, "This version of svkill requires Tk 4.0 or later"
  9
 10from string import splitfields
 11from string import split
 12import commands
 13import os
 14
 15user = os.environ['LOGNAME']
 16
 17class 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
 24class 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
124if __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()