Port to Python 3.

src/allmydata/immutable/filenode.py

@@ -1,4 +1,17 @@
+"""
+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 functools import reduce
 import binascii
 from time import time as now
 

src/allmydata/immutable/layout.py

@@ -1,3 +1,15 @@
+"""
+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
+
 import struct
 from zope.interface import implementer
 from twisted.internet import defer

src/allmydata/util/_python3.py

@@ -40,7 +40,9 @@ PORTED_MODULES = [
     "allmydata.immutable.downloader.segmentation",
     "allmydata.immutable.downloader.share",
     "allmydata.immutable.downloader.status",
+    "allmydata.immutable.filenode",
     "allmydata.immutable.happiness_upload",
+    "allmydata.immutable.layout",
     "allmydata.immutable.literal",
     "allmydata.interfaces",
     "allmydata.introducer.interfaces",