Merge pull request #1088 from Jackwaterveg/fix

[setup.py]remove the py3.6 in setup.py

setup.py

@@ -226,7 +226,6 @@ setup_info = dict(
         'License :: OSI Approved :: Apache Software License',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',