Hi guys, so I'm working on a Discord bot for one of my projects. I'm using the environment variables feature in Repl.it to keep my tokens safe. The file for the bot is called DiscoBot.py but I'm receiving errors when running it:

import os
import discord
import random

client = discord.Client()

@client.event
async def on_ready():
  print("We have logged in as {0.user}".format(client))

TOKEN = os.environ['discotoken']
client.run(TOKEN)

I even tried using os.getenv:

import os
import discord
import random

client = discord.Client()

@client.event
async def on_ready():
  print("We have logged in as {0.user}".format(client))

TOKEN = os.getenv['discotoken']
client.run(TOKEN)```

In both cases I get this error:
```bash
~/GeminiStationClient$ python Discobot.py 
Traceback (most recent call last):
  File "Discobot.py", line 11, in <module>
    TOKEN = os.environ['discotoken']
  File "/usr/lib/python3.8/os.py", line 675, in __getitem__
    raise KeyError(key) from None
KeyError: 'discotoken'
~/GeminiStationClient$ python Discobot.py 
Traceback (most recent call last):
  File "Discobot.py", line 11, in <module>
    TOKEN = os.getenv['discotoken']
TypeError: 'function' object is not subscriptable

What am I doing wrong?