Merge pull request #23 from ddurham2/4.3branch

added py3.8, py3.9 and py3.10

Author: kata198

setup.py

@@ -30,7 +30,7 @@
         log_description = summary
 
     setup(name='func_timeout',
-            version='4.3.5',
+            version='4.3.6',
             packages=['func_timeout'],
             author='Tim Savannah',
             author_email='[email protected]',
@@ -50,6 +50,9 @@
                           'Programming Language :: Python :: 3.5',
                           'Programming Language :: Python :: 3.6',
                           'Programming Language :: Python :: 3.7',
+                          'Programming Language :: Python :: 3.8',
+                          'Programming Language :: Python :: 3.9',
+                          'Programming Language :: Python :: 3.10',
                           'Topic :: Software Development :: Libraries :: Python Modules'
             ]
     )