Discord Bot | Python Fiddle

import discord

#Variables

client = discord.Client()
uread = open('users.dat', 'r')
uwrite = open('users.dat', 'w')
sread = open('serverstates.dat', 'r')
swrite = open('serverstates.dat', 'w')

global hasSaidWord

filterwords = [test, test1, test2, test3]
hasSaidWord = []
active = []
servers = client.guilds

#Functions

def readUSetList():
    print(uread.read())
    hasSaidWord = list(uread)
    hasSaidWord = list(map(int, hasSaidWord))

def writeU():
    uwrite.write(hasSaidWord)
    uwrite.close()

def readSSetList():
    print(sread.read())
    active = list(sread)
    active = list(map(int, active))

def writeS():
    swrite.write(active)
    swrite.close()

#Main

readUSetList()
readSSetList()

@client.event
async def on_ready():
    print('Bot User: '+client.user)
    print('Bot ID: '+client.id)
    print('Bot is ready')
    print('Bot is currently in '+len(servers)+'.')
    print('Violators: '+len(hasSaidWord))

@client.event
async def on_message(message):
    if message.guild.id in active:
        if filterwords in message.content:
            channel = message.channel
            await channel.send('Filtered word.')
            message.remove()
            if not message.author.id in hasSaidWord:
                hasSaidWord.append(message.author.id)
                writeU()

if message.content.startswith('.filter'):
        channel = message.channel
        if not message.guild.id in active:
        	active.append(((((message.guild.id*2)/67)+19.7)/9))
            channel.send('Filter on.')
            writeS()
            
        else:
            active.remove(((((message.guild.id*9)-19.7)*67)/2))
            channel.send('Filter off.')
            writeS()

client.run('token')

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