From 024cfd485c9e4e5e474d6f11016f2e4c4a19a02a Mon Sep 17 00:00:00 2001
From: Matthew Honnibal <honnibal@gmail.com>
Date: Sat, 31 Jan 2015 13:43:37 +1100
Subject: [PATCH] * Pass tag_strings as a tuple, to support new Tokens API

---
 spacy/en/pos.pyx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spacy/en/pos.pyx b/spacy/en/pos.pyx
index d8d1685b2..f1ce82390 100644
--- a/spacy/en/pos.pyx
+++ b/spacy/en/pos.pyx
@@ -252,7 +252,7 @@ cdef class EnPosTagger:
                 scores = self.model.score(context)
                 tokens.data[i].tag = arg_max(scores, self.model.n_classes)
                 self.set_morph(i, tokens.data)
-        tokens._tag_strings = self.tag_names
+        tokens._tag_strings = tuple(self.tag_names)
         tokens.is_tagged = True
 
     def train(self, Tokens tokens, object gold_tag_strs):