python3 compatibility

done/done.py

@@ -1,16 +1,21 @@
 """ Show a toggle which lets students mark things as done."""
 
-import pkg_resources
+from __future__ import absolute_import
+
 import uuid
 
+import six
+
+import pkg_resources
 from xblock.core import XBlock
-from xblock.fields import Scope, String, Boolean, DateTime, Float
+from xblock.fields import Boolean, DateTime, Float, Scope, String
 from xblock.fragment import Fragment
 
+
 def resource_string(path):
     """Handy helper for getting resources from our kit."""
     data = pkg_resources.resource_string(__name__, path)
-    return data.decode("utf8")
+    return data.decode("utf8") if six.PY2 else data
 
 
 class DoneXBlock(XBlock):

openedx.yaml

@@ -0,0 +1,11 @@
+# This file describes this Open edX repo, as described in OEP-2:
+# https://open-edx-proposals.readthedocs.io/en/latest/oep-0002-bp-repo-metadata.html#specification
+
+owner: 'unknown'
+
+oeps:
+    oep-2: True
+    oep-7: True
+
+tags:
+    - xblock

setup.py

@@ -1,6 +1,9 @@
 """Setup for done XBlock."""
 
+from __future__ import absolute_import
+
 import os
+
 from setuptools import setup
 
 
@@ -16,8 +19,12 @@ def package_data(pkg, root):
 
 setup(
     name='done-xblock',
-    version='0.1',
+    version='2.0',
     description='done XBlock',   # TODO: write a better description.
+    classifiers=[
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 3',
+    ]
     packages=[
         'done',
     ],
@@ -30,4 +37,4 @@ def package_data(pkg, root):
         ]
     },
     package_data=package_data("done", "static"),
-)
+)