How do I code a Discord Bot in Python on an Iphone or Chromebook?

**I am trying to code a bot for discord, but I do not have a laptop or an android. The chromebook I have is a school owned one, so things like downloads and developer mode are blocked. I can’t get the linux demo either. If it is not possible to code on this through web, then I do have an Iphone, which I have been told is impossible to code on… I’m not worried about how long the code takes to develop, I just want to be able to code it without any laptop.

Additionally, all attempts to use a code given with this website: https://github.com/Rapptz/discord.py/tree/async

I enter this example:

import discord
import asyncio

client = discord.Client()

@client.event
async def on_ready():
    print('Logged in as')
    print(client.user.name)
    print(client.user.id)
    print('------')

@client.event
async def on_message(message):
    if message.content.startswith('!test'):
        counter = 0
        tmp = await client.send_message(message.channel, 'Calculating messages...')
        async for log in client.logs_from(message.channel, limit=100):
            if log.author == message.author:
                counter += 1

        await client.edit_message(tmp, 'You have {} messages.'.format(counter))
    elif message.content.startswith('!sleep'):
        await asyncio.sleep(5)
        await client.send_message(message.channel, 'Done sleeping')

client.run('token')

but it gives me a syntax error like this:

Unknown Error.
  File "<stdin>", line 7
    async def on_ready():
        ^
SyntaxError: invalid syntax
Unknown Error.

This is insanely frustrating… can someone assist?

(i am using https://thumbsdb.herokuapp.com/python/?state={"folderId":"0AIiLka239X73Uk9PVA","action":"create","userId":"117443184978319349054"} and https://www.onlinegdb.com/ to enter and run code)