drop support/testing for python 3.7, 3.8

Author: matthewhanson

.github/workflows/continuous-integration.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.9", "3.10"]
     steps:
       - uses: actions/checkout@v2
 

setup.py

@@ -26,7 +26,8 @@
     classifiers=[
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10'
     ],
     keywords='',
     packages=find_packages(exclude=['docs', 'tests*']),