testing different python versions

Author: Phil Cummins

.github/workflows/test.yml

@@ -33,7 +33,7 @@ jobs:
       max-parallel: 1 # tests interfere with each other if run in parallel
       matrix:
         # order matters - this setup minimizes the interference between jobs
-        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: [3.8, 3.9]
         os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
     - uses: actions/checkout@v1