Add support for Python 3.10

Author: hugovk

.github/workflows/pythonpackage.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.7.5, 3.7.12, 3.8, 3.8.0, 3.8.11, 3.8, 3.9, 3.9.0, 3.9.7] # , "3.10.0-rc.2"]
+        python-version: [3.7, 3.7.5, 3.7.12, 3.8, 3.8.0, 3.8.11, 3.8, 3.9, 3.9.0, 3.9.7, "3.10"]
 
     steps:
     - uses: actions/checkout@v2

AUTHORS

@@ -44,4 +44,5 @@ Contributors are:
 -Ram Rachum <ram _at_ rachum.com>
 -Alba Mendez <me _at_ alba.sh>
 -Robert Westman <robert _at_ byteflux.io>
+-Hugo van Kemenade
 Portions derived from other open source works and are clearly marked.

setup.py

@@ -122,6 +122,6 @@ def build_py_modules(basedir: str, excludes: Sequence = ()) -> Sequence:
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
-        # "Programming Language :: Python :: 3.10"
+        "Programming Language :: Python :: 3.10",
     ]
 )