Minecraft New Players Notification

#!/usr/bin/python

import httplib, urllib
from datetime import datetime
import time

AppToken="ThisIsAnAppTokenGETYOUROWN";
UserKey="ThisIsAUserKeyGETYOUROWN";

LogLocation = '/opt/games/McMyAdmin/Minecraft/server.log';

CurrentTime=str(datetime.now()).split('.')[0];
LastUpdate="NULL";

def ConfigSetup():
    print "DEBUG: Opening config file...";
    ConfigFile = open('/root/scripts/server-notify.conf','r');
    TestUpdate="";
    print "DEBUG: Reading from config file..."
    for line in ConfigFile:
        if line.split(": ")[0]=="LastUpdate":
            LastUpdate = line.split(": ")[1];
            TestUpdate=LastUpdate;
    ConfigFile.close();
    LastUpdate = TestUpdate;
    print "DEBUG: Done setting config values.";
    return TestUpdate;

def WriteConfig():
    print "DEBUG: Opening config file...";
    ConfigFile = open('/root/scripts/server-notify.conf','w');
    print "DEBUG: Writing new values to config file...";
    ConfigFile.write("LastUpdate: " + CurrentTime);
    ConfigFile.close();
    print "DEBUG: Done writing config values.";
    return;

def notify(message,title="KatzKraft"):
    print "DEBUG: Sending notification...";
    conn = httplib.HTTPSConnection("api.pushover.net:443");
    conn.request("POST", "/1/messages", urllib.urlencode({"token": AppToken,"user": UserKey,"message": message,"title": title,}), { "Content-type": "application/x-www-form-urlencoded" });
    print "DEBUG: " + str({"token": AppToken,"user": UserKey,"message": message,"title": title,});
    print "DEBUG: Done sending notification.";
    return;

def CheckNewUsers():
    "Checks for new users since last check, notifies if there are.";
    print "DEBUG: Checking for new users...";
    ServerLog = open(LogLocation, 'r');
    NewUsers=[];
    ReturnMessage="";
    for line in ServerLog:
        if "Creating empty config" in line:
            Username=line.split('/')[8];
            Date=line.split(' ')[0];
            Time=line.split(' ')[1];
            DateTime = Date+" "+Time;
            Username = Username.replace(".yml","").replace('\n',"");
            if time.strptime(DateTime, "%Y-%m-%d %H:%M:%S") > time.strptime(LastUpdate, "%Y-%m-%d %H:%M:%S"):
                NewUsers.append({"Date":Date,"Time":Time,"Username":Username});
    ServerLog.close();
    if len(NewUsers)==0:
        print "DEBUG: No new users were found.";
        ReturnMessage = "No new users found.";
    elif len(NewUsers)==1:
        print "DEBUG: 1 new user was found.";
        ReturnMessage=str(NewUsers[0]["Username"]) + " joined the server at " + NewUsers[0]["Time"] +"!";
    else:
        print "DEBUG: " + str(len(NewUsers)) + " new users were found.";
        ReturnMessage="The following new players have joined the server: "+", ".join(str(x["Username"]) for x in NewUsers) + "!";

    if ReturnMessage=="No new users found.":
        print "DEBUG: No notification.";
        print "DEBUG: Done checking for new users.";
        return;
    else:
        print "DEBUG: New users were found, sending notification.";
        print "DEBUG: Done checking for new users.";
        notify(ReturnMessage,"New Users");
        return;

print "DEBUG: Starting KatzKraft Push Notification Script...";
LastUpdate=ConfigSetup();
print "DEBUG: The last update was at " + LastUpdate;
print "DEBUG: The current time is " + CurrentTime;
CheckNewUsers();
WriteConfig();
print "DEBUG: Ending KatzKraft Push Notification Script...";

print "DEBUG: Done.";