From 997a61557abb2e8205294b2ec2a892b17b323a27 Mon Sep 17 00:00:00 2001
From: Matthew Honnibal <honnibal+gh@gmail.com>
Date: Tue, 31 Oct 2017 19:30:52 +0100
Subject: [PATCH] Add vectors.n_keys property

---
 spacy/vectors.pyx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/spacy/vectors.pyx b/spacy/vectors.pyx
index cb9f0c0e6..bde793ec5 100644
--- a/spacy/vectors.pyx
+++ b/spacy/vectors.pyx
@@ -77,6 +77,11 @@ cdef class Vectors:
         """Returns True if no keys are available for new keys."""
         return len(self._unset) == 0
 
+    @property
+    def n_keys(self):
+        """Returns True if no keys are available for new keys."""
+        return len(self.key2row)
+
     def __reduce__(self):
         keys_and_rows = self.key2row.items()
         return (unpickle_vectors, (keys_and_rows, self.data))
@@ -204,7 +209,7 @@ cdef class Vectors:
                 self._unset.remove(row)
         return row
     
-    def most_similar(self, queries, *, return_scores=False, return_rows,
+    def most_similar(self, queries, *, return_scores=False, return_rows=False,
             batch_size=1024):
         '''For each of the given vectors, find the single entry most similar
         to it, by cosine.