_test/test_deprecation.py


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# coding: utf-8

import sys
import pytest  # NOQA


@pytest.mark.skipif(sys.version_info < (3, 7) or sys.version_info >= (3, 9),
                    reason='collections not available?')
def test_collections_deprecation():
    with pytest.warns(DeprecationWarning):
        from collections import Hashable  # NOQA