run unit and lint tests up to python 3.10

Author: Adam Dyess

.github/workflows/tox.yaml

@@ -8,7 +8,13 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python:
+          - "3.5"
+          - "3.6"
+          - "3.7"
+          - "3.8"
+          - "3.9"
+          - "3.10"
     steps:
     - name: Check out code
       uses: actions/checkout@v2
@@ -25,7 +31,13 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python:
+          - "3.5"
+          - "3.6"
+          - "3.7"
+          - "3.8"
+          - "3.9"
+          - "3.10"
     steps:
       - uses: actions/checkout@v2
       - name: Setup Python

setup.py

@@ -61,6 +61,7 @@
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
     ],
     entry_points={
         'console_scripts': [