Fix #4137: doctest: doctest block is always highlighted as python con…

[tk0miya]

…sole (pycon)

Fix #4137

[wojdyr]

Thanks for looking into it.

I think the condition will also catch testcode in addition to doctest, so perhaps the language would be better set to python than pycon? I don't know how exactly the pygments lexers work.

Another thing that comes to my mind is that perhaps in some cases one would prefer to use one of the other "python-related languages" supported by pygments:
http://pygments.org/docs/lexers/#lexers-for-python-and-related-languages

[peterjc]

So would you put:

    if self.name in ('testoutput', 'testcode'):

Would it makes sense to use pycon by default only if the text contains any line starting >>> ?

[tk0miya]

Now I arrange the conditions. And I will merge this after testing passed.
Please let me know if something wrong. I'll fix it again.
(Sorry for skipping reviewing. I'd like to merge this into 1.7b1 release)

[tk0miya]

Merged. Thank you for reviewing :-)