Got "MissingKeys" error using app-only auth

[JiA1996]

I was trying to use app-only auth to download big amount of tweets.
I set app_auth = true and I did not provide any access_token and access_token_secret.
And then I got MissingKeys error.

After reading the source code I assigned some arbitrary value to access_token and access_token_secret and everything works fine.
But app-only auth shoudn't require access_token and access_token_secret right?

[edsu]

Do you have the app keys set?

[JiA1996]

Do you have the app keys set?

I have both my consumer_key and consumer_secret set.

update: If I only provide consumer_key and consumer_secret to the twarc, it works on my computer running python 3.8.
However I still get key error on linux running python 2.x.
I'm not sure if it is my problem or not.

[edsu]

Are you testing with Python 2 and 3 on the same computer?

[JiA1996]

Are you testing with Python 2 and 3 on the same computer?

Python 3 on my computer and Python 2 on remote linux server

[edsu]

Is the same version of twarc installed on both?

twarc version

[JiA1996]

yes

[edsu]

Can you send me the contents of your twarc.log from your server environment?

[igorbrigadir]

Python 2 is no longer supported, going to close this old one - if it's still a problem, feel free to reopen!