Drop support for EOL Python 3.6

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
       fail-fast: false
       max-parallel: 5
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
 
     steps:
     - uses: actions/checkout@v3

setup.py

@@ -27,6 +27,7 @@ setup(
             "static/dbtemplates/js/*.js",
         ],
     },
+    python_requires=">=3.7",
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Environment :: Web Environment",
@@ -36,7 +37,6 @@ setup(
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",

tox.ini

@@ -4,12 +4,11 @@ usedevelop = True
 minversion = 1.8
 envlist =
     flake8
-    py3{6,7,8,9}-dj22
-    py3{6,7,8,9,10}-dj32
+    py3{7,8,9}-dj22
+    py3{7,8,9,10}-dj32
 
 [gh-actions]
 python =
-    3.6: py36
     3.7: py37
     3.8: py38
     3.9: py39
@@ -17,7 +16,6 @@ python =
 
 [testenv]
 basepython =
-    py36: python3.6
     py37: python3.7
     py38: python3.8
     py39: python3.9