I want to send packet with Scapy and it send packet normally, but they come back without an answer

Question

This part of the code should find the MAC address of the target using its IP address.

def get_MAC(ip):
    pkt_Ether = scapy.Ether(dst='ff:ff:ff:ff:ff')
    pkt_ARP = scapy.ARP(pdst=ip)
    packet = pkt_ARP / pkt_Ether
    ans, unans = scapy.srp(packet, timeout=1, verbose=False) [0]
    ans[0][1][ARP].hwsrc = target_mac
    return target_mac

With the MAC address of the target, it should then send a packet to the target and the router but I don't know why it's not working.

def spoof(target_ip, spoof_ip):
    target_mac = get_MAC(target_ip)
    packet = scapy.ARP(op=2, pdst=target_ip, hwdst=target_mac, psrc=spoof_ip)
    scapy.srp(packet, verbose=False)

I tried to use Python3 by adapting the program to be executed, but it sends the packets and they return without a response.

If someone can help me...