From c96530adeec7b72b34d0069e1aa8473b3994e801 Mon Sep 17 00:00:00 2001
From: Helmut Grohne <helmut@subdivi.de>
Date: Thu, 16 Apr 2015 17:44:31 +0200
Subject: there is no itertools.imap in py3k

---
 dedup/hashing.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'dedup')

diff --git a/dedup/hashing.py b/dedup/hashing.py
index 0b7f889..1419811 100644
--- a/dedup/hashing.py
+++ b/dedup/hashing.py
@@ -1,4 +1,8 @@
 import itertools
+try:
+    from itertools import imap as map
+except ImportError:
+    pass # in python3 map is already imap
 
 class HashBlacklist(object):
     """Turn a hashlib-like object into a hash that returns None for some
@@ -50,7 +54,7 @@ class HashBlacklistContent(object):
         self.blacklist = blacklist
         if maxlen is None:
             # the chain avoids passing the empty sequence to max
-            maxlen = max(itertools.chain((0,), itertools.imap(len, blacklist)))
+            maxlen = max(itertools.chain((0,), map(len, blacklist)))
         self.maxlen = maxlen
         self.stored = b""
 
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