[newbie] trying socket as a replacement for nc

[Jean Dubois]

Op vrijdag 13 december 2013 16:35:31 UTC+1 schreef Jean-Michel Pichavant:
> ----- Original Message -----
> > I have an ethernet-rs232 adapter which allows me to connect to a
> > measurement instrument by means of netcat on a linux system.
> > e.g. entering nc 10.128.59.63 7000
> > allows me to enter e.g.
> > *IDN?
> > after which I get an identification string of the measurement
> > instrument back.
> > I thought I could accomplish the same using the python module
> > "socket"
> > and tried out the sample program below which doesn't work however:
> > #!/usr/bin/env python
> > 
> > """
> > A simple echo client
> > """
> > import socket
> > host = '10.128.59.63'
> > port = 7000
> > size = 10
> > s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> > s.connect((host,port))
> > s.send('*IDN?')
> > data = s.recv(size)
> > s.close()
> > print 'Received:', data
> > 
> > Can anyone here tell me how to do it properly?
> > thanks in advance
> > jean
> Such equipment often implements a telnet protocol. Have use try using the telnetlib module ?
> http://docs.python.org/2/library/telnetlib.html
> t = Telnet(host, port)
> t.write('*IDN?')
> print t.read_until('Whateverprompt')
> # you can use read_very_eager also
> JM
Thanks for the suggestion, I'll first wait for a response from Dan Stromberg concerning how to install his module, if he doesn't answer or if I'm still unsuccessfull then I'll try out your suggestion

kind regards,
jean