bot.py

import discord
from discord.ext import commands
import random
import json
from datetime import datetime
import pytz

client = commands.Bot(command_prefix="!")
local_tz = timezone('Asia/Dubai')
nowtime = datetime.now(local_tz)

class Slapper(commands.Converter):
	async def convert(self, ctx, argument):
		to_slap = random.choice(ctx.guild.members)
		return '{0.author} slapped {1} because *{2}*'.format(ctx, to_slap, argument)

@client.event
async def on_ready():
	print("Bot is ready")

@client.command()
async def slap(ctx, *, reason: Slapper):
	await ctx.send(reason)

@client.command()
async def slaphard(ctx, members: commands.Greedy[discord.Member], *, reason='no reason'):
    slapped = " and ".join(x.name for x in members)
    await ctx.send('{} just got slapped for {}'.format(slapped, reason))
  
@client.command()
async def joined(ctx, *, member: discord.Member):
    await ctx.send('{0} joined on {0.joined_at}'.format(member))

@client.command()
async def hello(ctx):
    await ctx.send("Hi there, " + str(ctx.author) + " of the " + str(ctx.guild) + ".")

@client.command()
async def greet(ctx, timezone):
	cur_tz = timezone(timezone)
	current_time = cur_tz.localize(nowtime)

@client.command()
async def info(ctx):
    embed = discord.Embed(
        title = "Introduction to Slither and its commands",
        descriptiion = "Slither is a bot made by @wakandawarrior to spice up and try to aid all of those involved in this server. If you have any ideas as to how I may be improved, please talk to him",
        colour = discord.Colour(int("0dfaab", 16))
    )
    
    embed.set_footer(text="Created by an absolute novice")
    embed.set_image(url='https://cdn.discordapp.com/avatars/684973286438076437/11d7951e4e89d4b97b7f93b641770917.png')
    embed.set_thumbnail(url='https://cdn.discordapp.com/avatars/750429563028242512/2642f6de2a014e54f1ef29ccdfa9a1a3.png')
    embed.set_author(name='Nana', icon_url='https://cdn.discordapp.com/avatars/684973286438076437/11d7951e4e89d4b97b7f93b641770917.png')
    embed.add_field(name='!slaphard',value='Use slaphard to intentionally target a person or more with the wrath of your hand.    For example, !slaphard @crocodilefag @wakandawarrior someone must face my wrath', inline=False)
    embed.add_field(name='!slap', value='!slap is used to randomly targeta single person.A reason why also needs to be included. For example, !slap you stole my virignity', inline=False) 
    
    await ctx.send(embed=embed)
    
@client.command()
async def add_roles(ctx, rolename):
    member = ctx.message.author
    role = discord.utils.get(member.guild.roles, name=rolename)
    await discord.Member.add_roles(member, role)

@client.event
async def on_member_join(member):
    with open('users.json', 'r') as f:
        users = json.load(f)

    await update_data(users, member)

    with open('users.json', 'w') as f:
        json.dump(users, f)


@client.event
async def on_message(message):
    if message.author.bot == False:
        with open('users.json', 'r') as f:
            users = json.load(f)

        await update_data(users, message.author)
        await add_experience(users, message.author, 5)
        await level_up(users, message.author, message)

        with open('users.json', 'w') as f:
            json.dump(users, f)

    await client.process_commands(message)


async def update_data(users, user):
    if not f'{user.id}' in users:
        users[f'{user.id}'] = {}
        users[f'{user.id}']['experience'] = 0
        users[f'{user.id}']['level'] = 1


async def add_experience(users, user, exp):
    users[f'{user.id}']['experience'] += exp


async def level_up(users, user, message):
    with open('levels.json', 'r') as g:
        levels = json.load(g)
    experience = users[f'{user.id}']['experience']
    lvl_start = users[f'{user.id}']['level']
    lvl_end = int(experience ** (1 / 4))
    if lvl_start < lvl_end:
        await message.channel.send(f'{user.mention} has leveled up to level {lvl_end}')
        users[f'{user.id}']['level'] = lvl_end

@client.command()
async def level(ctx, member: discord.Member = None):
    if not member:
        id = ctx.message.author.id
        with open('users.json', 'r') as f:
            users = json.load(f)
        lvl = users[str(id)]['level']
        await ctx.send(f'You are at level {lvl}!')
    else:
        id = member.id
        with open('users.json', 'r') as f:
            users = json.load(f)
        lvl = users[str(id)]['level']
        await ctx.send(f'{member} is at level {lvl}!')

    
client.run(token)