Log Message:
Updated py-test to 3.0.2.

3.0.2
=====

* Improve error message when passing non-string ids to \ 
``pytest.mark.parametrize`` (`#1857`_).
  Thanks `@okken`_ for the report and `@nicoddemus`_ for the PR.

* Add ``buffer`` attribute to stdin stub class ``pytest.capture.DontReadFromInput``
  Thanks `@joguSD`_ for the PR.

* Fix ``UnicodeEncodeError`` when string comparison with unicode has failed. \ 
(`#1864`_)
  Thanks `@AiOO`_ for the PR.

* ``pytest_plugins`` is now handled correctly if defined as a string (as opposed as
  a sequence of strings) when modules are considered for assertion rewriting.
  Due to this bug, much more modules were being rewritten than necessary
  if a test suite uses ``pytest_plugins`` to load internal plugins (`#1888`_).
  Thanks `@jaraco`_ for the report and `@nicoddemus`_ for the PR (`#1891`_).

* Do not call tearDown and cleanups when running tests from
  ``unittest.TestCase`` subclasses with ``--pdb``
  enabled. This allows proper post mortem debugging for all applications
  which have significant logic in their tearDown machinery (`#1890`_). Thanks
  `@mbyt`_ for the PR.

* Fix use of deprecated ``getfuncargvalue`` method in the internal doctest plugin.
  Thanks `@ViviCoder`_ for the report (`#1898`_).