initial checkin of www Tk examples

Demo/tkinter/www/www2.py

@@ -0,0 +1,35 @@
+#! /usr/local/bin/python
+
+# www2.py -- print the contents of a URL on stdout
+# - error checking
+
+import sys
+import urllib
+import types
+
+def main():
+	if len(sys.argv) != 2 or sys.argv[1][:1] == '-':
+		print "Usage:", sys.argv[0], "url"
+		sys.exit(2)
+	url = sys.argv[1]
+	fp = my_urlopen(url)
+	while 1:
+		line = fp.readline()
+		if not line: break
+		sys.stdout.write(line)
+
+def my_urlopen(url):
+	try:
+		fp = urllib.urlopen(url)
+		return fp
+	except IOError, msg:
+		if type(msg) == types.TupleType and len(msg) == 4:
+			print msg[:3]
+			m = msg[3]
+			for line in m.headers:
+				sys.stdout.write(line)
+		else:
+			print msg
+		sys.exit(1)
+
+main()