Re: Socket Programming HOWTO example

2006-01-17 Thread Bryan Olson 
I mis-phrased:
> The code passes
> 'self' to __init__, but not to any of the others methods.

Of course I meant that the formal parameter for self is missing.

>  > class mysocket:
> 
>> '''classe solamente dimostrativa
>>   - codificata per chiarezza, non per efficenza'''
>> def __init__(self, sock=None):
>> if sock is None:
>> self.sock = socket.socket(
>> socket.AF_INET, socket.SOCK_STREAM)
>> else:
>> self.sock = sock
>> def connect(host, port):
>> self.sock.connect((host, port))
>> def mysend(msg):
[...]
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Re: Socket Programming HOWTO example

2006-01-17 Thread Bryan Olson 
Marco Meoni wrote:
> Hi. I read the Gordon McMillan's "Socket Programming Howto".
> I tried to use the example in this howto but this doesn't work.

You are right, that obviously won't work. The code passes
'self' to __init__, but not to any of the others methods.

I'm cc'ing this post to [EMAIL PROTECTED]


> The code is 
 > class mysocket:
> '''classe solamente dimostrativa
>   - codificata per chiarezza, non per efficenza'''
> def __init__(self, sock=None):
> if sock is None:
> self.sock = socket.socket(
> socket.AF_INET, socket.SOCK_STREAM)
> else:
> self.sock = sock
> def connect(host, port):
> self.sock.connect((host, port))
> def mysend(msg):
> totalsent = 0
> while totalsent < MSGLEN:
> sent = self.sock.send(msg[totalsent:])
> if sent == 0:
> raise RuntimeError, \\
> "connessione socket interrotta"
> totalsent = totalsent + sent

To send exactly MSGLEN bytes, use socket's 'sendall' method.

> def myreceive():
> msg = ''
> while len(msg) < MSGLEN:
> chunk = self.sock.recv(MSGLEN-len(msg))
> if chunk == '':
> raise RuntimeError, \\
> "connessione socket interrotta"
> msg = msg + chunk
> return msg

> How can i use this?

Treat it as a "HowNotTo".


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Re: Socket Programming HOWTO example

2006-01-17 Thread Manlio Perillo 
Steve Holden ha scritto:
> [...]
> I can see you have changed the example a little (because I know that
> Gordon's original didn't have comments in Italian). 

The example cames from italian translation of the howto:
http://python.it/doc/howto/Socket/sockets-it/sockets-it.html




Regards  Manlio Perillo
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Re: Socket Programming HOWTO example

2006-01-16 Thread Steve Holden 
Marco Meoni wrote:
> Hi. I read the Gordon McMillan's "Socket Programming Howto".
> I tried to use the example in this howto but this doesn't work.
> The code is class mysocket:
> '''classe solamente dimostrativa
>   - codificata per chiarezza, non per efficenza'''
> def __init__(self, sock=None):
> if sock is None:
> self.sock = socket.socket(
> socket.AF_INET, socket.SOCK_STREAM)
> else:
> self.sock = sock
> def connect(host, port):
> self.sock.connect((host, port))
> def mysend(msg):
> totalsent = 0
> while totalsent < MSGLEN:
> sent = self.sock.send(msg[totalsent:])
> if sent == 0:
> raise RuntimeError, \\
> "connessione socket interrotta"
> totalsent = totalsent + sent
> def myreceive():
> msg = ''
> while len(msg) < MSGLEN:
> chunk = self.sock.recv(MSGLEN-len(msg))
> if chunk == '':
> raise RuntimeError, \\
> "connessione socket interrotta"
> msg = msg + chunk
> return msg
>  
> How can i use this?

Well, a lot depends on what you mean by "doesn't work".

I can see you have changed the example a little (because I know that 
Gordon's original didn't have comments in Italian). Did the program 
produce a syntax error, a traceback or what? It would have been helpful 
if you had included a link to Gordon's tutorial -- I presume you mean 
the one at

   http://www.amk.ca/python/howto/sockets/

What are you trying to do, and why do you think this particular chunk of 
code might help you? Did you actually try to create and use any 
instances of this class?

regards
  Steve
-- 
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Holden Web LLC www.holdenweb.com
PyCon TX 2006  www.python.org/pycon/

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Socket Programming HOWTO example

2006-01-16 Thread Marco Meoni 
Hi. I read the Gordon McMillan's "Socket Programming Howto".
I tried to use the example in this howto but this doesn't work.
The code is class mysocket:
'''classe solamente dimostrativa
  - codificata per chiarezza, non per efficenza'''
def __init__(self, sock=None):
if sock is None:
self.sock = socket.socket(
socket.AF_INET, socket.SOCK_STREAM)
else:
self.sock = sock
def connect(host, port):
self.sock.connect((host, port))
def mysend(msg):
totalsent = 0
while totalsent < MSGLEN:
sent = self.sock.send(msg[totalsent:])
if sent == 0:
raise RuntimeError, \\
"connessione socket interrotta"
totalsent = totalsent + sent
def myreceive():
msg = ''
while len(msg) < MSGLEN:
chunk = self.sock.recv(MSGLEN-len(msg))
if chunk == '':
raise RuntimeError, \\
"connessione socket interrotta"
msg = msg + chunk
return msg
 
How can i use this?
Thanks all!
Marco

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