From d58c09dd48bb13a0098857988663aae69552d170 Mon Sep 17 00:00:00 2001
From: accraze <accraze@gmail.com>
Date: Thu, 22 Dec 2016 14:29:05 -0800
Subject: [PATCH] Fix #789 ignore DocvecsArray.doctag_syn0norm in save

---
 gensim/models/doc2vec.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gensim/models/doc2vec.py b/gensim/models/doc2vec.py
index fcb89d280c..00712f0685 100644
--- a/gensim/models/doc2vec.py
+++ b/gensim/models/doc2vec.py
@@ -353,6 +353,11 @@ def __contains__(self, index):
         else:
             return index in self.doctags
 
+    def save(self, *args, **kwargs):
+        # don't bother storing the cached normalized vectors
+        kwargs['ignore'] = kwargs.get('ignore', ['syn0norm'])
+        super(DocvecsArray, self).save(*args, **kwargs)
+
     def borrow_from(self, other_docvecs):
         self.count = other_docvecs.count
         self.doctags = other_docvecs.doctags