C server socket refusing the connection of a python client

I am trying to make a messenger program (that currently has a ton of bugs so please dismiss them) and for some reason, the server wont let the clients connect. I have tried changing the port, but nothing works. I get the following error (for my client, which is in python) (this is on a mac, but I have tried the client on a windows computer, still nothing):

Traceback (most recent call last):
  File "msgclient.py", line 31, in <module>
    Program()
  File "msgclient.py", line 8, in __init__
    self.s.connect((IP, PORT))
ConnectionRefusedError: [Errno 61] Connection refused

Here is the code for the server (written in c):

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <netinet/in.h>
#include <unistd.h>
#include <sys/types.h>

#define MAXCLIENTS 256
#define MAXMSG 269
#define PORT 9989

void forward(int clientslist[MAXCLIENTS], char* msg) {
    int x;
    for (x=0; x < MAXCLIENTS;  x++){
        send(clientslist[x], msg, sizeof(msg), 0);
    }
    return;
}

int main(){
    int s = socket(AF_INET, SOCK_STREAM, 0);
    int clients[MAXCLIENTS];
    int clientcounter = 0;

    fd_set socketlist, readlist;
    FD_ZERO(&socketlist);
    FD_SET(s, &socketlist);

    struct sockaddr_in server;
    server.sin_family = AF_INET;
    server.sin_port = htons(PORT);
    server.sin_addr.s_addr = INADDR_ANY;

    bind(s, (struct sockaddr*) &server, sizeof(server));
    listen(s, MAXCLIENTS);
    int clientsocket;
    int i;
    int rc;
    int max = s;
    void* msg = (char *) malloc(MAXMSG+1);
    void* usr = (char *) malloc(14);

    while (1){
        readlist = socketlist;
        select(FD_SETSIZE, &readlist, NULL, NULL, NULL);
        for (i=0; i<max+1; i++){
            if(FD_ISSET(i, &readlist)){
                if (i == s){
                    clientsocket = accept(s, NULL, NULL);
                    FD_SET(clientsocket, &socketlist);
                    clients[clientcounter] = clientsocket;
                    clientcounter++;
                    rc = recv(clientsocket, usr, 10, 0);
                    printf("Connection received from %s\n", usr);
                    usr = "\0";
                    if (clientsocket > max+1){
                        max = clientsocket;
                    }
                } else {
                    rc = recv(i, msg, MAXMSG, 0);
                    if (rc > 0){
                        forward(clients, msg);
                    } else{
                        close(i);
                    msg = "\0";
                    }
                }
            }

        }
    }
    return 0;
}

and the client (written in python):

import socket

class Program:
    def __init__(self):
        IP = socket.gethostbyname(socket.gethostname())
        PORT = 9989
        self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.s.connect((IP, PORT))
        self.user = self.username()
        self.s.send(bytes(self.user, "utf-8"))
        while True:
            received = self.s.recv(269)
            received = received.decode("utf-8")
            print(received)
            self.enter()


    def username(self):
        name = str(input("Enter a username (10 character max): "))
        if len(name) > 10:
            print("Username is larger than 10; try again")
            self.username()
        return name;

    def enter(self):
        msg = str(input("Enter a message>> "))
        if msg != "":
            self.s.send(bytes(f"{self.user}>> {msg}", "utf-8"))

if __name__ == "__main__":
    Program()