This snippet is based off the work of Mathew Wachter (https://github.com/matthewwachter/py-tcp-threaded-server). I added modifications to allow it to communicate to Lambda via requests

tcp_call_client.py

import json
import socket
import os

# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Connect the socket to the port where the server is listening
ip_address = os.getenv("TCP_SERVER_IP_ADDRESS")
port = int(os.getenv("TCP_PORT_NUMBER"))
server_address = (ip_address, port)
sock.connect(server_address)
msg = 'this is the request'

# msg = json.dumps(data)

# Send the message
sock.sendall(msg.encode('utf-8'))

# Receive the message back
res = sock.recv(1024).decode('utf-8')
print("AND THE RESPONSE IS")
print(res)
data = json.loads(res)
print(data)