Save this file as x.rst:

.. doctest::

    >>> print(
    ...    "Hi\n\nByé")
    Hi
    ...
    Byé
    >>> 1/0
    1

Run with

python -m pytest x.rst 

on pytest 3.1.0 with Python 2.7.11, observe lengthy stacktrace ending with a UnicodeDecodeError in _ellipsis_match. Pytest 3.0.4 works fine.