At the following url..
http://www.nightmare.com/medusa/programming.html
The author has the following code for a simple HTTP client
#!/usr/bin/python
import asyncore
import socket
import string
class http_client (asyncore.dispatcher):
def __init__ (self, host, path):
asyncore.dispatcher.__init__ (self)
self.path = path
self.create_socket (socket.AF_INET, socket.SOCK_STREAM)
self.connect ((host, 80))
def handle_connect (self):
self.send ('GET %s HTTP/1.0\r\n\r\n' % self.path)
def handle_read (self):
data = self.recv (8192)
print data
def handle_write (self):
pass
if __name__ == '__main__':
import sys
import urlparse
for url in sys.argv[1:]:
parts = urlparse.urlparse (url)
if parts[0] != 'http':
raise ValueError, "HTTP URL's only, please"
else:
host = parts[1]
path = parts[2]
http_client (host, path)
asyncore.loop()
Right after that, the author states the following...
" A really good way to understand select() is to put a print statement
into the asyncore.poll() function:
[...]
(r,w,e) = select.select (r,w,e, timeout)
print '---'
print 'read', r
print 'write', w
[...]
Each time through the loop you will see which channels have fired
which events.
"
How the heck do I modify the code put the print statement into the
asyncore.poll() function?
Chad
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