drop python versions before py3.8, which are past EOL

Author: gruns

.github/workflows/ci.yml

@@ -13,8 +13,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - python-version: '3.7'
-            toxenv: py37
           - python-version: '3.8'
             toxenv: py38
           - python-version: '3.9'

setup.py

@@ -96,8 +96,6 @@ def run_tests(self):
         'Development Status :: 5 - Production/Stable',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = codestyle, py37, py38, py39, py310, py311, py312, py313, pypy3
+envlist = codestyle, py38, py39, py310, py311, py312, py313, pypy3
 
 [testenv]
 deps =