Demo/tkinter/www/www2.py

   1 #! /usr/local/bin/python
   2
   3 # www2.py -- print the contents of a URL on stdout
   4 # - error checking
   5
   6 import sys
   7 import urllib
   8 import types
   9
  10 def main():
  11         if len(sys.argv) != 2 or sys.argv[1][:1] == '-':
  12                 print "Usage:", sys.argv[0], "url"
  13                 sys.exit(2)
  14         url = sys.argv[1]
  15         fp = my_urlopen(url)
  16         while 1:
  17                 line = fp.readline()
  18                 if not line: break
  19                 sys.stdout.write(line)
  20
  21 def my_urlopen(url):
  22         try:
  23                 fp = urllib.urlopen(url)
  24                 return fp
  25         except IOError, msg:
  26                 if type(msg) == types.TupleType and len(msg) == 4:
  27                         print msg[:3]
  28                         m = msg[3]
  29                         for line in m.headers:
  30                                 sys.stdout.write(line)
  31                 else:
  32                         print msg
  33                 sys.exit(1)
  34
  35 main()