DOUBT ! What must be done here ?

[Harithadxb]

OWNED_PAGES_TOKENS = {
'jpryda': os.environ['MY_TOKEN'], # Token as an environmental variable: export MY_TOKEN = 'abc-my-token'
# 'MyPage1': 'my-hardcoded-token' # Hardcoded token
}

this code is raising the following error:
File "C:\Users\Anaconda3\lib\os.py", line 678, in getitem
raise KeyError(key) from None

[beeyatch]

Did you managed to get it working? Cheers