def reraise():

    raise

def test_reraise():

    """

    >>> test_reraise()

    Traceback (most recent call last):

    ValueError: TEST

    """

    try:

        raise ValueError("TEST")

    except ValueError:

        raise

def test_reraise_indirect():

    """

    >>> test_reraise_indirect()

    Traceback (most recent call last):

    ValueError: TEST INDIRECT

    """

    try:

        raise ValueError("TEST INDIRECT")

    except ValueError:

        reraise()

def test_reraise_error():

    """

    >>> try: test_reraise_error()

    ... except (RuntimeError, TypeError): pass  # Py2, Py3, ...

    ... else: print("FAILED")

    """

    import sys

    if hasattr(sys, 'exc_clear'): # Py2

        sys.exc_clear()

    raise