Mass Discord Message Remover

#!/usr/bin/python
# -*- coding: utf-8 -*-
# NOTE: I did not program this, Nor do i know the author.
#       This was pulled and revamped from Retard MessengerTheGods Github
#       I DO NOT CLAIM AUTHORSHIP OF THIS PROGRAM - Aex

# Instructions: Install Python3.
#               run: pip install asyncio && pip install discord
# Side Note: If you previously added Python2 to your path,
#            Change directories to C:\Users\<USERNAME>\AppData\Local\Programs\Python\
#            Run Program: python dban.py clear <AUTH_TOKEN>

# Error Handle: Sometimes Pastebin is retarded, and decides to take the qoute mark away from line 20.
#               add a " to line 20.
import os
import sys
import discord
import asyncio
import subprocess

cmd_prefix = sys.argv[1]
auth_token = sys.argv[2]

def puts(string):
    sys.stdout.write(string + "\n")

def run(cmd):
    subprocess.call(cmd, shell=True)

client = discord.Client()

@client.event
async def on_ready():
    if (os.name == "nt"):
        run('cls')

    elif (os.name == "posix"):
        run('clear')

    puts('[D_DBAN] Logged in as: %s' % (client.user.name))
    puts('[D_DBAN] User Identification: %s' % (client.user.id))
    puts('[D_DBAN] Discord Version: %s' % (discord.__version__))
    puts('----------')
    puts('Connected to:')
    for server in client.servers:
        puts(server.name)

# Define commands
@client.event
async def on_message(message):
    if message.author == client.user:
        commands = []
        z = 0
        for index, a in enumerate(message.content):
            if a == " ":
                commands.append(message.content[z:index])
                z = index+1
        commands.append(message.content[z:])

        # MASS DELETE OWN MESSAGES
        if commands[0] == cmd_prefix:
            if len(commands) == 1:
                async for msg in client.logs_from(message.channel,limit=9999):
                    if msg.author == client.user:
                        try:
                            await client.delete_message(msg)
                        except Exception as x:
                            puts("[D_DBAN] A exception has occured. Passing Exception")
                            pass

            elif len(commands) == 2:
                user_id = ''
                for channel in client.private_channels:
                    if commands[1] in str(channel):
                        if str(channel.type) == 'private':
                            user_id = str(channel.id)
                async for msg in client.logs_from(discord.Object(id=user_id),limit=9999):
                    if msg.author == client.user:
                        try:
                            await client.delete_message(msg)
                        except Exception as x:
                            puts("[D_DBAN] A exception has occured. Passing Exception")
                            pass

client.run(auth_token, bot=False)