Python scripting with dell n-series switch, mapping connected devices

Okay, Managed to get it working thanks to this youtube channel. However, the powerconnect 8024F I am unable to authenticate with at the moment... Now the challenge of marrying up ports to IP address. This was the script:

from netmiko import ConnectHandler
from netmiko import NetmikoTimeoutException
from paramiko.ssh_exception import SSHException
from paramiko.ssh_exception import AuthenticationException
import time
import datetime
#Types:
#dell_dnos9
#dell_force10
#dell_isilon
#dell_os10
#dell_os6
#dell_os9
#dell_powerconnect
#dell_sonic
TNOW = datetime.datetime.now().replace(microsecond=0)
IP_LIST = open('DellNseries_devices') #just a file with the IP addresses
TNOW=TNOW.strftime("%d%b%Y")
for IP in IP_LIST:
    print ('\n #### Connecting to the Switch '+ IP.strip() + ' #### \n' )
    RTR = {
    'ip':   IP,
    'username': 'username', #Set username 
    'password': 'password#', #Set password
    'device_type': 'dell_os6',
    }

    try:
        net_connect = ConnectHandler(**RTR)
    except NetmikoTimeoutException:
        print ('Device not reachable')
        continue
    except AuthenticationException:
        print ('Failed to Authenticate')
        continue
    except SSHException:
        print ("Make sure SSH is enabled in device.")
        continue

    print ('Initiating backup')
    net_connect.enable()
    output = net_connect.send_command('show startup-config')
    IP=IP.strip()
    SAVE_FILE = open(IP +'_'+TNOW,'w')
    SAVE_FILE.write(output)
    SAVE_FILE.close
    print ('Exporting macaddress table')
    output = net_connect.send_command('show mac address-table vlan 1')
    SAVE_FILE = open(IP +'_'+TNOW+"MacTable",'w')
    SAVE_FILE.write(output)
    SAVE_FILE.close
    print ('Exporting ARP for IP')
    output = net_connect.send_command('show arp')
    SAVE_FILE = open(IP +'_'+TNOW+"ARP",'w')
    SAVE_FILE.write(output)
    SAVE_FILE.close

Okay, I have a problem
The MAC address shown to be plugged into the gigabit port is different the the mac address of the actual device. When I show arp, the device doesnt appear but when I ping the IP address it then shows in arp but the mac address table is still the wrong mac