Derpibooru Random Image Bot for Discord

# The DerpiRand Discord bot, by Bytewave

# Runs under Python 3.5 - requires discord.py and DerPyBooru
# run 'pip install derpybooru discord.py' at the command line for setup

import discord # Discord Python library
from derpibooru import Search, user, sort # DerPyBooru
import threading # Thread library to create listen thread for exitting the script
import os # OS library for os._exit

# CONFIG
# Populate these strings with their respective data pls
dc_username    = '' # Discord username
dc_password    = '' # Discord password
command        = '!derpirand' # Chat command
db_api_key     = '' # Derpibooru API key (optional)
user_blacklist = [] # Blacklisted Discord IDs
exit_cmds      = ['exit', 'quit', 'close', 'stop', 'q']
# END CONFIG

# EXIT THREADING
class ExitThread(threading.Thread):
    def run(self):
        while True:
            if input().lower() in exit_cmds:
                print('--------')
                print('Logging out...')
                client.logout()
                print('Success.')
                os._exit(0)

try:
    ExitThread().start()
except:
    print('[ERROR]: ', sys.exc_info()[0])
    print('Halting execution...')
    exit(255)
# END EXIT THREADING

client = discord.Client()

print('Attempting Discord login...')
client.login(dc_username, dc_password) # Log in to Discord

@client.event
def on_message(message):
    if message.content.lower().startswith(command):
        print('Request received!') # Debug and logging
        requester        = message.author
        requester_name   = requester.name
        requester_id     = requester.id
        print('Requester:', requester_name, '|', requester_id)
        print('Channel:  ', message.channel.server.name, '|', message.channel.name)

        query = message.content[(len(command) + 1):] # Strip command from message text
        print('Query:    ', query)

        query_list = query.split(',') # Split CSV list of tags into list

        if requester_id not in user_blacklist:
            client.send_typing(message.channel) # Typing notification while loading

            search  = Search().query(*query_list).key(db_api_key).sort_by(sort.RANDOM).limit(1) # DerPyBooru searching
            results = [image for image in search]

            if len(results) == 0:
                print('Result:    No images found.')
                client.send_message(message.channel, '@' + requester_name + ' (' + query + '): No images found.', [requester], False)
            else:
                result = results[0]
                print('Result:   ', result.url)

                client.send_message(message.channel, '@' + requester_name + ' (' + query + '): ' + result.url, [requester], False)
        else:
            print('Result:    User blacklisted, ignoring request.')

        print('========')

@client.event
def on_ready(): # More debug information
    print('Success!')
    print('--------')
    print('Logged in as:')
    print('Username:   ', dc_username)
    print('Client name:', client.user.name)
    print('ID:         ', client.user.id)
    print('--------')
    print('Configuration info:')
    print('Command:               ', command)
    print('Derpibooru API key:    ', db_api_key)
    print('--------')
    print('Type one of the following to exit:')
    print(*exit_cmds)
    print('========')

if __name__ == '__main__':
    client.run() # Actually do our thing.