python 3.9 support added

Andrea Bonomi · Andrea Bonomi · commit 44ed77b9408f · 2021-10-09T09:57:17.000+02:00
diff --git a/setup.py b/setup.py
@@ -20,6 +20,7 @@ def readme():
           'Programming Language :: Python :: 3.6',
           'Programming Language :: Python :: 3.7',
           'Programming Language :: Python :: 3.8',
+          'Programming Language :: Python :: 3.9',
       ],
       keywords='struct',
       author='Andrea Bonomi',
