> Did you try
>
> import telnetlib
>
> ?
>
> Note that in the code above I forgot the EOF, which is very much
> dependent of the equipment itself.
>
> You may have to write
> t.write('*IDN?\n')
> or
> t.write('IDN?\n\r')
>
> JM
Additionally, here's the code we're using for our signal generators, just to
give you a broad idea:
def getError(self):
error = self._extractRsp(self._sendCmd('SYST:ERR?', 10))
if '"No error"' in error:
return None
else:
return error
def _sendCmd(self, aCmd, timeout):
self.send(str(aCmd) + self.SEND_LFCR)
waitPattern = [self.PROMPT]
try:
index, _, rsp= self._telnet.expect(waitPattern, timeout)
except EOFError:
self._logger.error('Connection unexpectedly closed
while sending/reading/ data.')
raise MxgError('Connection unexpectedly closed while
sending the command "%s"' % aCmd)
if index == -1:
raise MxgError('Timeout occurred while sendind the
command "%s"' % aCmd)
return rs
def _extractRsp(self, rawRsp):
# the returned string should be something like
'\r\n<response>\r\n<prompt>'
# or '\r\n<prompt>'
# tries to extract the response only, removing the additional
carriage returns and prompt
rawRsp = rawRsp.replace(self.READ_LFCR+self.PROMPT, '')
if rawRsp.startswith(self.READ_LFCR):
rawRsp = rawRsp[2:]
return rawRs
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