Update setup.cfg to show python 3.9 support.

dihm · dihm · commit f6409e070a3a · 2021-12-07T10:11:56.000-05:00
diff --git a/setup.cfg b/setup.cfg
@@ -18,6 +18,7 @@ classifiers =
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
 
 [options]
 zip_safe = False
