Finish port to Python 3.

src/allmydata/test/test_filenode.py

@@ -1,3 +1,14 @@
+"""
+Ported to Python 3.
+"""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+
+from future.utils import PY2
+if PY2:
+    from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, open, pow, round, super, bytes, dict, list, object, range, str, max, min  # noqa: F401
 
 from twisted.trial import unittest
 from allmydata import uri, client

src/allmydata/util/_python3.py

@@ -87,6 +87,7 @@ PORTED_TEST_MODULES = [
     "allmydata.test.test_dictutil",
     "allmydata.test.test_encode",
     "allmydata.test.test_encodingutil",
+    "allmydata.test.test_filenode",
     "allmydata.test.test_happiness",
     "allmydata.test.test_hashtree",
     "allmydata.test.test_hashutil",