From 3ba5238282d5ea84d5d2a71b5940de30fbaf3331 Mon Sep 17 00:00:00 2001
From: Ines Montani <ines@ines.io>
Date: Mon, 16 Sep 2019 15:16:12 +0200
Subject: [PATCH] Make "unnamed vectors" warning a real warning

---
 spacy/_ml.py    | 5 +----
 spacy/errors.py | 2 ++
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/spacy/_ml.py b/spacy/_ml.py
index d81ceccc1..6104324ab 100644
--- a/spacy/_ml.py
+++ b/spacy/_ml.py
@@ -286,10 +286,7 @@ def link_vectors_to_models(vocab):
     if vectors.name is None:
         vectors.name = VECTORS_KEY
         if vectors.data.size != 0:
-            print(
-                "Warning: Unnamed vectors -- this won't allow multiple vectors "
-                "models to be loaded. (Shape: (%d, %d))" % vectors.data.shape
-            )
+            user_warning(Warnings.W020.format(shape=vectors.data.shape))
     ops = Model.ops
     for word in vocab:
         if word.orth in vectors.key2row:
diff --git a/spacy/errors.py b/spacy/errors.py
index 80c4c6f85..b2a201773 100644
--- a/spacy/errors.py
+++ b/spacy/errors.py
@@ -84,6 +84,8 @@ class Warnings(object):
     W018 = ("Entity '{entity}' already exists in the Knowledge base.")
     W019 = ("Changing vectors name from {old} to {new}, to avoid clash with "
             "previously loaded vectors. See Issue #3853.")
+    W020 = ("Unnamed vectors. This won't allow multiple vectors models to be "
+            "loaded. (Shape: {shape})")
 
 
 @add_codes