Current Behaviour
isort is currently configured to automatically add from __future__ import annotations to Python modules. However, some files (e.g. configuration modules like pywikibot/config.py or bootstrap scripts such as pwb.py) must not receive this import. At the moment, pwb.py is excluded from the isort hook entirely.
Proposal
Provide a way to exclude specific files from automatically adding the future import while keeping all other isort functionality (e.g. import sorting and formatting) enabled for given files.