[FIXED] How to "temporary ban" someone with discord.py?

Issue

i am making a management discord bot with discord.py, so i realized that i need to add a command to temp ban someone for some time, this ban can be by roles or by kicking the member out of the channel and then banning him, but i don't know how to do that. Can someone help me?

Solution

After a lot of trial and error I finally got it! Given bellow is a discord.py bot with a command to temporarily ban a user and can be used for multiple users

ban_list = []
day_list = []
server_list = []

#This is a background process
async def countdown():
    await client.wait_until_ready()
    while not client.is_closed:
        await asyncio.sleep(1)
        day_list[:] = [x - 1 for x in day_list]
        for day in day_list:
            if day <= 0:
                try:
                    await client.unban(server_list[day_list.index(day)], ban_list[day_list.index(day)])
                except:
                    print('Error! User already unbanned!')
                del ban_list[day_list.index(day)]
                del server_list[day_list.index(day)]
                del day_list[day_list.index(day)]
               
#Command starts here
@client.command(pass_context = True)
async def ban(ctx,member:discord.Member, days = 1):
    if str(ctx.message.author.id) == '<You ID goes here>':
        try:
            await client.ban(member, delete_message_days=0)
            await client.say('User banned for **' + str(days) + ' day(s)**')
            ban_list.append(member)
            day_list.append(days * 24 * 60 * 60)
            server_list.append(ctx.message.server)
        except:
            await client.say('Error! User not active')
    else:
        await client.say('You do not have permission to ban users!')

client.loop.create_task(countdown())

I tested this program by banning three users for distinct amounts of time and it worked like a charm. Please note that the time may not be too accurate. The greater the time you choose, the greater the error.

For some reason users that are offline cannot be banned by a Bot.

The bot has to be online full time for this to work... If you reboot the bot or the bot crashes all lists get cleared.

Answered By - Sujit