def create_decimal128_context():
    """Returns an instance of :class:`decimal.Context` appropriate
    for working with IEEE-754 128-bit decimal floating point values.
    """
    opts = _CTX_OPTIONS.copy()
    opts['traps'] = []
    return decimal.Context(**opts)
Returns an instance of :class:`decimal.Context` appropriate
    for working with IEEE-754 128-bit decimal floating point values.
    
stackoverflow/venv/lib/python3.6/site-packages/bson/decimal128.py