to run this:

• pip3 install -r requirements.txt

• python3 arp_spoof.py --help
  
  Output:

  usage: arp_spoof.py [-h] [-v] target host
  
  ARP spoof script
  
  positional arguments:
  target         Victim IP Address to ARP poison
  host           Host IP Address, the host you wish to intercept packets for
                  (usually the gateway)
  
  optional arguments:
  -h, --help     show this help message and exit
  -v, --verbose  verbosity, default is True (simple message each second)
  
  For instance, if you want to spoof 192.168.1.2 and the gateway is 192.168.1.1:

  python3 arp_spoof 192.168.1.2 192.168.1.1 --verbose