discord_test1.9 (my code).py

import random, requests
from discord.ext.commands import Bot
from discord.ext import commands
import wikipedia

BOT_PREFIX = ("?", "!")
# The prefixes used to call the bot commands
TOKEN = "NTA1ODE4MjY3MjA2NTQ5NTA0.DreJrQ.PtoiMm48GlvkLfgWOvNhEgS9xHU"
weather = "http://api.openweathermap.org/data/2.5/weather?appid=e7d4ecdec3fe9c8a0a471cf7091371d8&q="
# Discord server token and weather API URL

client = Bot(command_prefix = BOT_PREFIX)

#the @ is a function decorator
@client.command(name="8ball",
                     description="Answers with 'yes/no",
                     brief="Super duper uber mega ultra psychic bot",
                     aliases=["eight_ball","eightball","8-ball"],
                     pass_context = True)
async def eight_ball(context):
    # async makes the functions run asynchronously
    possible_responses = [
        "That is a resounding no",
        "It is not looking likely",
        "Too hard to tell",
        "It is quite possible",
        "Definitely"
        ]
    await client.say(random.choice(possible_responses) + ", " + context.message.author.mention)

@client.command()
async def square(number):
    squaredValue = int(number) * int(number)
    await client.say(str(number) + " squared is " + str(squaredValue))
    # .say is the command version of send_message

@client.command(pass_context = True)
async def weather(context,city):
    weather = "http://api.openweathermap.org/data/2.5/weather?appid=e7d4ecdec3fe9c8a0a471cf7091371d8&q="
    # My openweathermap API key ^^^
    url = (weather)+(city)
    data = requests.get(url).json()
    # Concatenates the city/town input and url strings together and requests the data about that city
    weatherDesc = data["weather"][0]["description"]
    temperature = round(float(data["main"]["temp"] - (273.15)),1)
    # Pulls the weather description from the database
    # The pulls and converts the temperature from Kelvin to Celsius
    weatherWriting = "The weather is "
    temperatureWriting = "The temperature is "
    await client.say(str(weatherWriting) + (weatherDesc) + " in " + str(city) + ", " + context.message.author.mention)
    await client.say(str(temperatureWriting) + str(temperature)+"°C")
    # The Discord bot sends a message with a description of the weather (mentioning the user aswell)
    # It also sends another message with the temperature

@client.command()
async def wiki(text):
    definition = wikipedia.summary(text,sentences=2)
    wikiURL = wikipedia.page(text)
    await client.say(definition)
    await client.say(wikiURL.url)
    # Provides the first two sentences of the desired Wikipedia page and then the URL to that page

@client.command()
async def echo(*args):
    # *args allows for infite arguments in the input (**kwargs can also be used)
    output = ""
    for word in args:
        output += word
        output += " "
    await client.say(output)

@client.event
async def on_message(message):
    if message.author == client.user:
        return
    # stops the bot from replying to itself
    if message.content.startswith('!hello'):
        msg = 'Hello {0.author.mention}'.format(message)
        await client.send_message(message.channel, msg)
        # send_message can only be used with events and not commands

    await client.process_commands(message)
    # this line fixes an error where on_message takes priority over all commands

@client.event
async def on_ready():
    print("User Logged In:)
    print(client.user.name)
    print(client.user.id)
    print("//////")
    # prints user details to signify the bot is online

client.run(TOKEN)
# runs the bot with my discord server token