def test_symbol_nonpositive():
    x = Symbol('x', nonpositive=True)
    assert x.is_positive is False
    assert x.is_nonpositive is True
    assert x.is_negative is None
    assert x.is_nonnegative is None
    assert x.is_zero != None
    assert x.is_nonzero is None
dataset/ETHPy150Open sympy/sympy/sympy/core/tests/test_assumptions.py/test_symbol_nonpositive/operator `is` -> `!=`