From: Raymond Hettinger <python@rcn.com>
Date: Mon, 3 Jan 2011 02:44:14 +0000 (+0000)
Subject: Supply a reduce method for pickling.
X-Git-Tag: v3.2rc1~237
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ff72816b5fad9909c9e8ba4144d258b4595bbaca;p=python

Supply a reduce method for pickling.
---

diff --git a/Lib/collections.py b/Lib/collections.py
index f26c73ed0f..89a15886f8 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -539,6 +539,9 @@ class Counter(dict):
         'Like dict.copy() but returns a Counter instance instead of a dict.'
         return Counter(self)
 
+    def __reduce__(self):
+        return self.__class__, (dict(self),)
+
     def __delitem__(self, elem):
         'Like dict.__delitem__() but does not raise KeyError for missing values.'
         if elem in self: