From 28256522c8a6311e6a20d66927ef2bd230755464 Mon Sep 17 00:00:00 2001
From: Santiago Castro <bryant@montevideo.com.uy>
Date: Sun, 17 Jan 2021 08:48:43 -0300
Subject: [PATCH] Fix `spacy.util.minibatch` when the size iterator is finished
 (#6745)

---
 spacy/util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spacy/util.py b/spacy/util.py
index 95a9f087f..6cf87bcac 100644
--- a/spacy/util.py
+++ b/spacy/util.py
@@ -513,7 +513,7 @@ def minibatch(items, size=8):
         size_ = size
     items = iter(items)
     while True:
-        batch_size = next(size_)
+        batch_size = next(size_, 0)  # StopIteration isn't handled in generators in Python >= 3.7.
         batch = list(itertools.islice(items, int(batch_size)))
         if len(batch) == 0:
             break