Merge pull request #1630 from aucampia/iwana-20211229T0112-fix_version

Add classifier for python 3.10

Author: Nicholas Car

setup.py

@@ -71,6 +71,7 @@ def open_local(paths, mode="r", encoding="utf8"):
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "License :: OSI Approved :: BSD License",
         "Topic :: Software Development :: Libraries :: Python Modules",
         "Operating System :: OS Independent",