chore: remove Python 3.6 support (#251)

* chore: remove Python `3.6` support

* Back to the `__future__`

* chore: add annotations, minor cleanup

* style: pre-commit fixes

* chore: fix pre-commit

Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -31,7 +31,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - "3.6"
           - "3.7"
           - "3.8"
           - "3.9"

.pre-commit-config.yaml

@@ -7,12 +7,12 @@ repos:
     rev: v2.37.3
     hooks:
       - id: pyupgrade
-        args: [--py36-plus]
+        args: [--py37-plus]
 
   - repo: https://github.com/psf/black
     rev: 22.8.0
     hooks:
-      - id: black
+      - id: black-jupyter
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.3.0
@@ -33,6 +33,7 @@ repos:
     rev: 5.10.1
     hooks:
       - id: isort
+        args: ["-a", "from __future__ import annotations"]
 
   - repo: https://github.com/tox-dev/pyproject-fmt
     rev: "0.3.5"
@@ -77,7 +78,7 @@ repos:
     hooks:
       - id: blacken-docs
         args: ["-E"]
-        additional_dependencies: [black==22.3.0]
+        additional_dependencies: [black==22.8.0]
 
   - repo: https://github.com/pre-commit/pygrep-hooks
     rev: v1.9.0

README.md

@@ -17,7 +17,7 @@
 [![LICENSE][license-badge]][license-link]
 [![Scikit-HEP][sk-badge]][sk-link]
 
-Vector is a Python 3.6+ library for 2D, 3D, and [Lorentz vectors](https://en.wikipedia.org/wiki/Special_relativity#Physics_in_spacetime), especially _arrays of vectors_, to solve common physics problems in a NumPy-like way.
+Vector is a Python 3.7+ library for 2D, 3D, and [Lorentz vectors](https://en.wikipedia.org/wiki/Special_relativity#Physics_in_spacetime), especially _arrays of vectors_, to solve common physics problems in a NumPy-like way.
 
 Main features of Vector:
 

docs/changelog.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## Version 0.10
+
+### Version 0.10.0
+
+- Remove Python `3.6` support [#251][]
+
+[#251]: https://github.com/scikit-hep/vector/pull/251
+
 ## Version 0.9
 
 ### Version 0.9.0

docs/conf.py

@@ -4,8 +4,11 @@
 # list see the documentation:
 # https://www.sphinx-doc.org/en/master/usage/configuration.html
 
-# -- Path setup --------------------------------------------------------------
+from __future__ import annotations
+
+from pkg_resources import get_distribution
 
+# -- Path setup --------------------------------------------------------------
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
@@ -14,7 +17,6 @@
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
 
-from pkg_resources import get_distribution
 
 # -- Project information -----------------------------------------------------
 

docs/index.rst

@@ -11,7 +11,7 @@
 Overview
 --------
 
-Vector is a Python 3.6+ library for 2D, 3D, and `Lorentz vectors <https://en.wikipedia.org/wiki/Special_relativity#Physics_in_spacetime>`_, especially _arrays of vectors\_, to solve common physics problems in a NumPy-like way.
+Vector is a Python 3.7+ library for 2D, 3D, and `Lorentz vectors <https://en.wikipedia.org/wiki/Special_relativity#Physics_in_spacetime>`_, especially _arrays of vectors\_, to solve common physics problems in a NumPy-like way.
 
 Main features of Vector: