def neg_missing(s):
    if s == "?":
        return "-1"
    return s
Accept with errors
dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/datasets/hepatitis.py/neg_missing--crossover with--dataset/ETHPy150Open SmartTeleMax/iktomi/tests/forms/forms.py/FormErrorsTests.test_simple