spaCy/spacy/tests/regression/test_issue3959.py

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# coding: utf8
from __future__ import unicode_literals
from spacy.lang.en import English
from ..util import make_tempdir
def test_issue3959():
""" Ensure that a modified pos attribute is serialized correctly."""
nlp = English()
doc = nlp(
"displaCy uses JavaScript, SVG and CSS to show you how computers understand language"
)
assert doc[0].pos_ == ""
doc[0].pos_ = "NOUN"
assert doc[0].pos_ == "NOUN"
# usually this is already True when starting from proper models instead of blank English
doc.is_tagged = True
with make_tempdir() as tmp_dir:
file_path = tmp_dir / "my_doc"
doc.to_disk(file_path)
doc2 = nlp("")
doc2.from_disk(file_path)
assert doc2[0].pos_ == "NOUN"