spaCy/spacy/tests/test_pickle.py

import cloudpickle
import io
import os
import pickle
import pytest
import tempfile

try:
    unicode
except NameError:
    unicode = str

@pytest.mark.models
def test_pickle_english(EN):
    file_ = io.BytesIO()
    cloudpickle.dump(EN, file_)

    file_.seek(0)

    loaded = pickle.load(file_)
    assert loaded is not None

@pytest.mark.models
def test_cloudpickle_to_file(EN):
    f = tempfile.NamedTemporaryFile(delete=False)
    p = cloudpickle.CloudPickler(f)
    p.dump(EN)
    f.close()
    loaded_en = cloudpickle.load(open(f.name, 'rb'))
    os.unlink(f.name)
    doc = loaded_en(unicode('test parse'))
    assert len(doc) == 2