Support Python 3.10

Update the package's trove metadata to indicate support for Python
3.10 now that 3.10.0a1 has been tagged.

diff --git a/setup.cfg b/setup.cfg
index a6d73f9..6a7e215 100644 (file)
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,6 +35,7 @@ classifier =
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3 :: Only
     Topic :: Communications
     Topic :: Communications :: BBS