I am having trouble incorparating a GUI into my python program

You have to configure everything, then you can call a function for a connection and then at the end call root.mainloop(). Here are some of the work you need to make:

from socket import AF_INET, SOCK_STREAM, socket, gethostnamefrom tkinter import *from tkinter import ttkIP = gethostname() # or "127.0.0.1"PORT = 1337root = Tk()root.title("")mainframe = ttk.Frame(root, padding="3 3 12 12")mainframe.grid(column=0, row=0, sticky=(N, W, E, S))root.columnconfigure(0, weight=1)root.rowconfigure(0, weight=1)for child in mainframe.winfo_children(): child.grid_configure(padx=5, pady=5)root.bind('<Return>', connectionFunc)def connectionFunc(*args):    # this way you dont have to close the socket.    with socket(AF_INET, SOCK_STREAM) as s:        s.listen()        s.bind((IP, PORT))        conn, addr = s.accept()        with conn:            print(f"connection from: {addr}")            while True:                data = conn.recv(1024)                if not data:                    break                conn.sendall(data)root.mainloop()

You should use thread for waiting connection:

import socketimport threadingfrom tkinter import *def wait_connection():    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    s.bind((socket.gethostname(), 1234))    s.listen(5)    while True:        clientsocket, address = s.accept()        msg.set(f"Connection from {address} has been established.")        clientsocket.send(bytes("HELL YEAH FAM!!! WE DID IT!!","utf-8"))        clientsocket.close()root = Tk()msg = StringVar(value='Waiting for connection ...')theLabel = Label(root,textvariable=msg)theLabel.pack()# start a thread for waiting client connectionthreading.Thread(target=wait_connection, daemon=True).start()root.mainloop()