Drop Python v3.5 support

Date when Python project won’t support v3.5

Other projects dropping Py 3.5

Todos

DuniterPy

Silkaj

  • Add back Black dependency to pyproject.toml and poetry.lock
  • Remove black installation from Docker images v3.8
  • Remove tests-3.5 job from .gitlab-ci.yml
  • duniterpy#60 (closed): Update to DuniterPy v0.60.0 which drops Python 3.5 support
  • #223 (closed), #354: Add ModuleNotFoundError exception.
  • #194 (closed): Use f-string
  • …

Container

  • Delete v3.5 Docker image generation? No, keep it to support, v0.8.x which still supports Python v3.5. Can be dropped when Silkaj v0.8.x support is dropped.
Edited by Moul