Demo/tkinter/www/www8.py

   1 #! /usr/bin/env python
   2
   3 # www8.py -- display the contents of a URL in a Text widget
   4 # - set window title
   5 # - make window resizable
   6 # - update display while reading
   7 # - vertical scroll bar
   8
   9 import sys
  10 import urllib
  11 from Tkinter import *
  12
  13 def main():
  14         if len(sys.argv) != 2 or sys.argv[1][:1] == '-':
  15                 print "Usage:", sys.argv[0], "url"
  16                 sys.exit(2)
  17         url = sys.argv[1]
  18         fp = urllib.urlopen(url)
  19
  20         # Create root window
  21         root = Tk()
  22         root.title(url)
  23         root.minsize(1, 1)
  24
  25         # The Scrollbar *must* be created first -- this is magic for me :-(
  26         vbar = Scrollbar(root)
  27         vbar.pack({'fill': 'y', 'side': 'right'})
  28         text = Text(root, {'yscrollcommand': (vbar, 'set')})
  29         text.pack({'expand': 1, 'fill': 'both', 'side': 'left'})
  30
  31         # Link Text widget and Scrollbar -- this is magic for you :-)
  32         ##text['yscrollcommand'] = (vbar, 'set')
  33         vbar['command'] = (text, 'yview')
  34
  35         while 1:
  36                 line = fp.readline()
  37                 if not line: break
  38                 text.insert('end', line)
  39                 root.update_idletasks()
  40
  41         root.mainloop()
  42
  43 main()