Bidirectional communication between respberry pi's via socket (python3) - python-3.x

Question

I got 50% of this to work - pi #1 acts as the server and sends messages to the client (pi #2).
But how can it RECEIVE information back from the client?
Basically, the issue I'm having is that pi #1 needs to receive commands from pi #2 as well.
SERVER.py
import socket
import time
print("This is pizero2 as server.")
# REMOTE SETUP as SERVER
addresses = {
'littlechefee': {'ip': '192.168.39.242','port': 5003}, # pi4-one pi4 L wall .. liqs
}
sockets = []
i = 0
for addr in addresses:
ip = addresses[addr]['ip']
port = addresses[addr]['port']
sockets.append(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
sockets[i].setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
sockets[i].connect((ip,port))
print(f'Success, connected with {addr}. ')
except:
print("Unable to Connect Rpi with IP: {} and Port: {}".format(ip,port ))
i += 1
def send():
command = 'test from pizero2'
indx = 0 # bc only 1 remote pi
print(f"Sending littlechefee a cmd.")
try:
sockets[indx].sendall(str(command).encode('utf-8'))
except:
print('Unable to send command! Invalid options')
while True:
send()
CLIENT.py
import socket
import time
# REMOTE SETUP as CLIENT
rcv_ip = '192.168.39.46' # Please insert the receiver own ip (ip of rpi on which this script is running.) Example : '192.268.xx.xx'
rcv_port = 5002 # please use 5001 upto 5006 for different rpi's
sock_rcv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock_rcv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock_rcv.bind((rcv_ip,rcv_port))
sock_rcv.listen(10)
def get_data():
dt_r, adr_r = sock_rcv.accept()
while True:
cmd = dt_r.recv(1024)
if cmd:
cmd = cmd.decode('utf-8') # str = ['dispense', [13, 6, 13], 50]
cmd = cmd.split(' ') # lst = ["['dispense',", '[13,', '6,', '13],', '50]']
print("cmd is: ", cmd) # cmd = ["['nema',", "'W',", "'5',", '3000]']
else:
print("Connection closed.")
break
time.sleep(1)
while True:
get_data()