PYTHON SCAPY HELP

I need help modifying this code so that the ip address is not hardcoded. Please show code running I am trying to figure out VM operating systems using IPID's.

from scapy.all import $*$

target$\_$ip $="$x$.$x$.$x$.$x$"$

target$\_$port $=80$

syn$\_$packet $=$ IP$($dst$=$target$\_$ip$)/$ TCP$($dport$=$target$\_$port, flags$="$S$")$

syn$\_$response $=$ sr$1($syn$\_$packet, timeout$=1,$ verbose$=$False$)$

if syn$\_$response:

ipid$\_$syn$\_$ack $=$ syn$\_$response.id

ack$\_$packet $=$ IP$($dst$=$target$\_$ip$)/$ TCP$($dport$=$target$\_$port, flags$="$A$",$ ack$=$syn$\_$response.seq $+1)$

ack$\_$response $=$ sr$1($ack$\_$packet, timeout$=1,$ verbose$=$False$)$

if ack$\_$response:

ipid$\_$ack$\_$ack $=$ ack$\_$response.id

rst$\_$packet $=$ IP$($dst$=$target$\_$ip$)/$ TCP$($dport$=$target$\_$port, flags$="$R$",$ seq$=$ack$\_$response.ack$)$

rst$\_$response $=$ sr$1($rst$\_$packet, timeout$=1,$ verbose$=$False$)$

if rst$\_$response:

ipid$\_$rst$\_$ack $=$ rst$\_$response.id

if ipid$\_$syn$\_$ack $==$ ipid$\_$ack$\_$ack and ipid$\_$rst$\_$ack $==$ ipid$\_$ack$\_$ack $+1$:

print$("$The OS is likely FreeBSD"$)$

elif ipid$\_$syn$\_$ack $!=$ ipid$\_$ack$\_$ack and ipid$\_$rst$\_$ack $==$ ipid$\_$ack$\_$ack:

print$("$The OS is likely Windows"$)$

else:

print$("$The OS is likely Linux"$)$

else:

print$("$No response to RST packet"$)$

else:

print$("$No response to ACK packet"$)$

else:

print$("$No response to SYN packet"$)$