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ab8be8f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | # Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
import unittest
import qlib
from qlib.data import D
from qlib.tests import TestAutoData
from multiprocessing import Pool
def get_features(fields):
qlib.init(provider_uri=TestAutoData.provider_uri, expression_cache=None, dataset_cache=None, joblib_backend="loky")
return D.features(D.instruments("csi300"), fields)
class TestGetData(TestAutoData):
FIELDS = "$open,$close,$high,$low,$volume,$factor,$change".split(",")
def test_multi_proc(self):
"""
For testing if it will raise error
"""
iter_n = 2
pool = Pool(iter_n)
res = []
for _ in range(iter_n):
res.append(pool.apply_async(get_features, (self.FIELDS,), {}))
for r in res:
print(r.get())
pool.close()
pool.join()
if __name__ == "__main__":
unittest.main()
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