Merge pull request #80 from ojarva/remove-python2.7-support

Remove python2.7 support

Author: ojarva

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name='sshpubkeys',
-    version='3.2.0',
+    version='3.3.0',
     description='SSH public key parser',
     long_description=long_description,
     url='https://github.com/ojarva/python-sshpubkeys',
@@ -31,6 +31,7 @@
     keywords='ssh pubkey public key openssh ssh-rsa ssh-dss ssh-ed25519',
     packages=["sshpubkeys"],
     test_suite="tests",
+    python_requires='>=3',
     install_requires=['cryptography>=2.1.4', 'ecdsa>=0.13'],
     extras_require={
         'dev': ['twine', 'wheel', 'yapf'],