Python 3.10, 3.11 support

Author: babenek

setup.py

@@ -33,6 +33,8 @@
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
         'Topic :: System',
         'Topic :: System :: Filesystems',
         'Topic :: Utilities'],

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py{27,35,36,37,38,39}, lint, test, doc, clean
+envlist = py27, py3{7,5,6,7,8,9,10,11}, lint, test, doc, clean
 skip_missing_interpreters = true
 
 [testenv:test]