Remove support for python 3.6 and set the minimum to v3.7

Author: jedymatt

.github/workflows/python-package.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v3

requirements.txt

@@ -1,5 +1,4 @@
 SQLAlchemy>=1.4
-# dataclasses>=0.8; python_version == "3.6"
 PyYAML>=5.4
 coverage>=6.2
 tox

setup.cfg

@@ -12,7 +12,6 @@ license_files =
     LICENSE
 classifiers =
     License :: OSI Approved :: MIT License
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -30,8 +29,7 @@ package_dir =
     =src
 install_requires =
     SQLAlchemy>=1.4
-    ; dataclasses>=0.8; python_version == "3.6"
-python_requires = >=3.6
+python_requires = >=3.7
 
 [options.packages.find]
 where = src