server question

[Roman Suzi]

On Sat, 11 Aug 2001, vin wrote:

>I am trying to evaluate a string with a simple server and send the result
>back but I can't get it to work.
>
>import socket
>
>def start_server(PORT):
>    HOST = ' '                 # Symbolic name meaning the local host

Hmmm... I always thought this supposed to be ''

>    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>    s.bind((HOST, PORT))
>    s.listen(1)
>    conn, addr = s.accept()
>    print 'Connected by', addr
>    while 1:
>        data = conn.recv(1024)
>        if not data : break
>        conn.send(eval(data))
>    conn.close()
>
>When I send "5*6" the server chrashes.  ....
>
>Traceback (most recent call last):
>  File "<stdin>", line 1, in ?
>  File "server.py", line 13, in start_server
>    print 'Evaluated', eval(data)
>  File "<string>", line 1
>    5*6
>       ^
>SyntaxError: invalid syntax
>
>How can I get it to work?

Maybe, you can try to
string.strip expression before evaluation?

>Thanks


Sincerely yours, Roman Suzi
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