fix comparison of constants (#11834)

Co-authored-by: MarcoGorelli <>

.pre-commit-config.yaml

@@ -5,7 +5,7 @@ repos:
     - id: black
       language_version: python3.7
       additional_dependencies: ['click==8.0.4']
--   repo: https://gitlab.com/pycqa/flake8
+-   repo: https://github.com/pycqa/flake8
     rev: 5.0.4
     hooks:
     - id: flake8

spacy/tests/vocab_vectors/test_vocab_api.py

@@ -1,8 +1,13 @@
+import os
+
 import pytest
 from spacy.attrs import IS_ALPHA, LEMMA, ORTH
+from spacy.lang.en import English
 from spacy.parts_of_speech import NOUN, VERB
 from spacy.vocab import Vocab
 
+from ..util import make_tempdir
+
 
 @pytest.mark.issue(1868)
 def test_issue1868():
@@ -59,3 +64,19 @@ def test_vocab_api_contains(en_vocab, text):
 def test_vocab_writing_system(en_vocab):
     assert en_vocab.writing_system["direction"] == "ltr"
     assert en_vocab.writing_system["has_case"] is True
+
+
+def test_to_disk():
+    nlp = English()
+    with make_tempdir() as d:
+        nlp.vocab.to_disk(d)
+        assert "vectors" in os.listdir(d)
+        assert "lookups.bin" in os.listdir(d)
+
+
+def test_to_disk_exclude():
+    nlp = English()
+    with make_tempdir() as d:
+        nlp.vocab.to_disk(d, exclude=("vectors", "lookups"))
+        assert "vectors" not in os.listdir(d)
+        assert "lookups.bin" not in os.listdir(d)

spacy/vocab.pyx

@@ -468,9 +468,9 @@ cdef class Vocab:
         setters = ["strings", "vectors"]
         if "strings" not in exclude:
             self.strings.to_disk(path / "strings.json")
-        if "vectors" not in "exclude":
+        if "vectors" not in exclude:
             self.vectors.to_disk(path, exclude=["strings"])
-        if "lookups" not in "exclude":
+        if "lookups" not in exclude:
             self.lookups.to_disk(path)
 
     def from_disk(self, path, *, exclude=tuple()):