Originally posted by @PeterJCLaw in #12932 (comment)

Apologies if this isn't the right place to raise this, but as I understand it, isort 5 drops support for Python 3.5 (at least being run by Python 3.5, I don't know if it can still operate on Python 3.5 sources). Does shipping isort 5 mean that the Python extension is now also dropping support for Python 3.5 generally in the next release?
Since Python 3.5 is still the default in a variety of older but still supported Linuxes (for example: anything based on Debian Stretch, which is itself expected to continue with extended support until 2022), this feels like it would be worth clarifying.