Not able to print the variable in which popen result of a remote m/c is stored.

[George Bush]

port2_result=os.popen('ipmitool raw 0x3a 0x11 0x2a 0x6f 0x00 8').read()

this is the expression i've written in a script after calling a procedure to establish SSH connection to a remote machine. the same thing works for local machine but after ssh, it's giving the variable as '[ ]'. the ssh procedure is as follows:

def SSH (user,host,PROMPT) :
    os.system('rm -f /root/.ssh/known_hosts')
    SSHd = 'ssh '+user+'@'+host
    ssh_obj = pexpect.spawn(SSHd)
    try :
        ssh_obj.logfile=None;
        ssh_obj.expect('\(yes\/no\)\?',timeout=50)
        ssh_obj.sendline('yes')
    except :
        print "Unable to login to "+host
        sys.exit(3)
    try:
        ssh_obj.expect(PROMPT,timeout=50)
    except:
        print "Unable to login to "+host
        sys.exit(3)
    try:
        ssh_obj.sendline('XYZ')
        ssh_obj.expect('found',timeout=10)
        ssh_obj.sendline('PS1="RTM_SHOW>"')
        ret=ssh_obj.expect(['RTM_SHOW>','#'],timeout=5)
        if ret == 1:
            ssh_obj.expect('RTM_SHOW>',timeout=5)
    except:
        print "Unable to change Prompt"
        sys.exit(3)
    ssh_obj.logfile=sys.stdout;
    return ssh_obj

and this is where i'm executing the command

if node != host :
    print "YES",
    try:
        local=SSH("root",node,'#')
        local.logfile=sys.stdout
    except:
        print "unable to do SSH."


    try:
              # reg=re.compile(r'^\s\d.+')
               reg=re.compile('.*')
               print "cmdsend"
               local.sendline('ipmitool raw 0x3a 0x11 0x2a 0x6f 0x00 7')
               ret=local.expect([reg,'RTM_SHOW>'],timeout=15)
               if ret == 0:
                   port1_result=local.match.group()
                   print "my",port1_result
               else:
                        sys.exit(1)


               port2_result = os.popen('ipmitool raw 0x3a 0x11 0x2a 0x6f 0x00 8').read()
               parse_output(port1_result,port2_result)
    except:
               print "error EXECUTING ssh commands."

its printing "error EXECUTING ssh commands." the ret value is 0. I don't know how to check what is it actually printing on that remote machine!! pls help!