import discord

class sf_user:
    def __init__(self, username, dmchannel):
        self.name = username
        self.channel = dmchannel
        self.question = 0
        self.category = 0
        self.semester = 0
		
client = discord.Client()
users = []

@client.event
async def on_ready():
    print("we logged in as {0.user}".format(client))
	
@client.event
async def on_message(message):
    if message.author == client.user:
	    return
	
    if message.content.lower().startswith("!start"):
        for i in users:
            if i.name == message.author:
                print(message.author, "is already in database")
                return
        users.append(sf_user(message.author, await message.author.create_dm()))
        await users[-1].channel.send("Hello")
		
    if message.content.lower().startswith("!question") and isinstance(message.channel, discord.channel.DMChannel):
        await message.channel.send("Question")
	    

client.run("Nzg1MTkxODM3OTg3MzczMDg2.X80Q4g.bK_vMhhESanMOA78KxHfmJft2vk")