🚨 New Python runtime environment in Heroku

[miss-islington]

There's a new Python runtime enviornment in Heroku. You might want to update the bot to use the new environment by editing the runtime.txt file.

See the changelog at https://devcenter.heroku.com/changelog-items/1804
Message:
Python (CPython) 2.7.18, 3.5.9, 3.7.7 and 3.8.3 are now available on Heroku.

Additionally, PyPy 2.7 and 3.6 version 7.3.1 are now also released to Beta.

For more information, see our page on Python Support .

(I'm a bot) 🤖