In ReStructuredText, this gets syntax highlighted

because of the code directive [1][2][3]:

   import this

   def func(*args, **kwargs):

       pass

This also gets syntax highlighted as python[3]:

.. code:: python

This does not::

Syntax highlighting in Docutils 0.9+ is powered by Pygments.

If Pygments is not installed, or there is a syntax error,

syntax highlighting is absent.

GitHub does show Pygments syntax highlighting

in .. code:: blocks for .rst and .restructuredtext documents [4]

1. Does the python.org PEP view support .. code:: blocks? [5]

2. Syntax highlighting is an advantage for writers, editors, and readers.

3. Should PEPs use .. code:: blocks to provide this advantage?

[1] http://docutils.sourceforge.net/docs/ref/rst/directives.html#code

[2] http://www.sphinx-doc.org/en/stable/markup/code.html

[3] http://www.sphinx-doc.org/en/stable/config.html#confval-highlight_language

[4] https://github.com/python/peps/blob/master/pep-0557.rst

[5] https://www.python.org/dev/peps/pep-0557/