Add Python Versions

README.md

@@ -3,6 +3,7 @@
 # labelme: Image Polygonal Annotation with Python
 
 [![PyPI Version](https://img.shields.io/pypi/v/labelme.svg)](https://pypi.python.org/pypi/labelme)
+[![Python Versions](https://img.shields.io/pypi/pyversions/labelme.svg)](https://pypi.org/project/labelme)
 [![Travis Build Status](https://travis-ci.org/wkentaro/labelme.svg?branch=master)](https://travis-ci.org/wkentaro/labelme)
 [![Docker Build Status](https://img.shields.io/docker/build/wkentaro/labelme.svg)](https://hub.docker.com/r/wkentaro/labelme)
 

setup.py

@@ -86,9 +86,13 @@ setup(
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Intended Audience :: Developers',
-        'License :: OSI Approved :: MIT License',
-        'Operating System :: POSIX',
-        'Topic :: Internet :: WWW/HTTP',
+        'Natural Language :: English',
+        'License :: OSI Approved :: GPLv3 License',
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: Implementation :: CPython',
+        'Programming Language :: Python :: Implementation :: PyPy',
     ],
     package_data={'labelme': ['icons/*', 'config/*.yaml']},
     entry_points={