[Tutor] a problem with a server and client

[Khalid Al-Ghamdi]

yah i did the search, and tried the solution, but it didn't work.... nice
of you to have tried, though...

anyhow, i found where the problem is... on the client side it should be
connect() instead of bind() in :

> tcpCliSock.bind(ADDR)

thanks

On Fri, Apr 6, 2012 at 4:59 PM, Evert Rol <evert.rol at gmail.com> wrote:

> > i'm trying to implement a server that adds a time stamp to incoming text
> form a client.
> >
> > the server's code is (but doesn't seem to have the problem as demoed by
> the error below:
> >
> > from socket import *
> > from time import ctime
> >
> > HOST = ''
> > PORT = 21567
> > BUFSIZ = 1024
> > ADDR =(HOST, PORT)
> >
> > tcpSerSock = socket(AF_INET, SOCK_STREAM)
> >
> > tcpSerSock.bind(ADDR)
> > tcpSerSock.listen(5)
> >
> > while True:
> >     print('waiting for connection ...')
> >     tcpCliSock, addr =tcpSerSock.accept()
> >     print('...connected from: ', addr)
> >
> >     while True:
> >         data = tcpCliSock.recv(BUFSIZ)
> >         if not data:
> >             break
> >         tcpCliSock.send('[{}] {}'.format(bytes(ctime(), 'utf-8'),data))
> >
> >     tcpCliSock.close()
> > tcpSerSock.close()
> >
> >
> >
> > the client's code is:
> >
> > from socket import *
> >
> >
> > HOST = 'localhost'
> > PORT = 21567
> > BUFSIZ = 1024
> > ADDR =(HOST, PORT)
> >
> > tcpCliSock = socket(AF_INET, SOCK_STREAM)
> >
> > tcpCliSock.bind(ADDR)
> >
> > while True:
> >     data=input('> ')
> >     if not data:
> >         break
> >     tcpCliSock.send(data)
> >     data = tcpCliSock.recv(BUFSIZ)
> >     if not data:
> >         break
> >     print(data.decode('utf-8'))
> >
> > tcpCliSock.close()
> >
> > the problem is i get the following error when i enter some text:
> >
> > Traceback (most recent call last):
> >   File "C:\Python32\tsTclnt3.py", line 17, in <module>
> >     tcpCliSock.send(data)
> > TypeError: 'str' does not support the buffer interface
>
> Did you try to search on the error string? That would have gotten you the
> solution (even) faster.
> The first two Google hits (and probably all the rest of them), tell me
> that Python 3's socket.send() method wants bytes as input, not str. See
> http://docs.python.org/py3k/library/socket.html#socket.socket.send
>
> Hope that helps,
>
>  Evert
>
>
> >
> > can you help?
> > _______________________________________________
> > Tutor maillist  -  Tutor at python.org
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>
>
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