doctest skipif may remove the code block from documentation

[wojdyr]

Doctest :skipif: option (introduced in #5307) may unintentionally remove the code in doctest from documentation.
Ideally, the :skipif: condition would be evaluated only by the doctest builder.

[tk0miya]

Could you give any example?

[wojdyr]

contents.rst:

.. doctest::

  >>> 1
  1

.. doctest::
  :skipif: True

  >>> 2
  2

.. doctest::
  :skipif: False

  >>> 3
  3

Tested as follows:

$ sphinx-build -b html -C -D extensions=sphinx.ext.doctest . out/
$ lynx -dump out/contents.html 
   #[1]Index [2]Search

>>> 1
1

>>> 3
3

...

It is missing:

  >>> 2
  2

in the output.

[tk0miya]

Thank you for example. confirmed. Surely, this is not intentional.

[tk0miya]

Fixed by #6115.
Thank you for reporting!