#11 add >= py36 version constraint

Author: reverbc

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [Unreleased]
 ### Fixed
 - Fix pytest **Module already imported so cannot be rewritten** warning when the package being linted was used by pytest/conftest already (#10)
+- Fix missing Python version constraint (#11)
 
 ## [1.0.1] - 2021-03-03
 ### Added

setup.py

@@ -27,6 +27,7 @@
         'pylint',
         'pytest>=4.6',
     ],
+    python_requires='>=3.6',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Intended Audience :: Developers',