1 files changed, 14 insertions, 14 deletions
diff --git a/dedup/hashing.py b/dedup/hashing.py
index 2a83929..9cebcbb 100644
--- a/dedup/hashing.py
+++ b/dedup/hashing.py
@@ -1,10 +1,6 @@
 import itertools
-try:
-    from itertools import imap as map
-except ImportError:
-    pass # in python3 map is already imap
 
-class HashBlacklist(object):
+class HashBlacklist:
     """Turn a hashlib-like object into a hash that returns None for some
     blacklisted hashes instead of the real hash value.
 
@@ -35,7 +31,7 @@ class HashBlacklist(object):
     def copy(self):
         return HashBlacklist(self.hashobj.copy(), self.blacklist)
 
-class HashBlacklistContent(object):
+class HashBlacklistContent:
     """Turn a hashlib-like object into a hash that returns None for some
     blacklisted content instead of the real hash value. Unlike HashBlacklist,
     not the output of the hash is considered, but its input."""
@@ -80,13 +76,15 @@ class HashBlacklistContent(object):
         return self.hashobj.hexdigest()
 
     def copy(self):
-        return HashBlacklistContent(self.hashobj.copy(), self.blacklist,
-                                    self.maxlen)
+        new = HashBlacklistContent(self.hashobj.copy(), self.blacklist,
+                                   self.maxlen)
+        new.stored = self.stored
+        return new
 
-class DecompressedHash(object):
+class DecompressedHash:
     """Apply a decompression function before the hash. This class provides the
     hashlib interface (update, hexdigest, copy) excluding digest and name."""
-    def __init__(self, decompressor, hashobj):
+    def __init__(self, decompressor, hashobj, name="unnamed"):
         """
         @param decompressor: a decompression object like bz2.BZ2Decompressor or
             lzma.LZMADecompressor. It has to provide methods decompress and
@@ -94,9 +92,11 @@ class DecompressedHash(object):
             method.
         @param hashobj: a hashlib-like obj providing methods update, hexdigest
             and copy
+        @param name: initialized the name property
         """
         self.decompressor = decompressor
         self.hashobj = hashobj
+        self.name = name
 
     def update(self, data):
         self.hashobj.update(self.decompressor.decompress(data))
@@ -115,9 +115,10 @@ class DecompressedHash(object):
         return tmphash.hexdigest()
 
     def copy(self):
-        return DecompressedHash(self.decompressor.copy(), self.hashobj.copy())
+        return DecompressedHash(self.decompressor.copy(), self.hashobj.copy(),
+                                self.name)
 
-class SuppressingHash(object):
+class SuppressingHash:
     """A hash that silences exceptions from the update and hexdigest methods of
     a hashlib-like object. If an exception has occurred, hexdigest always
     returns None."""
@@ -163,9 +164,8 @@ def hash_file(hashobj, filelike, blocksize=65536):
     while data:
         hashobj.update(data)
         data = filelike.read(blocksize)
-    return hashobj
 
-class HashedStream(object):
+class HashedStream:
     """A file-like object, that supports sequential reading and hashes the
     contents on the fly."""
     def __init__(self, filelike, hashobj):