def no_tracing(func):
    if not hasattr(sys, 'gettrace'):
        return func
    else:
        @functools.wraps(func)
        def wrapper(*args, **kwargs):
            original_trace = sys.gettrace()
            try:
                sys.settrace(None)
                return func(*args, **kwargs)
            finally:
                sys.settrace(original_trace)
        return wrapper
testing if the ntsc attribute value will be False if it is set to
dataset/ETHPy150Open OpenCobolIDE/OpenCobolIDE/open_cobol_ide/extlibs/future/backports/test/support.py/no_tracing--crossover with--dataset/ETHPy150Open eoyilmaz/anima/tests/previs/test_rate.py/RateTestCase.test_ntsc_attribute_is_set_to_None