Using listings instead of verbatim to enable code wrap

[Carreau]

@redraven984 opened ipython/ipython#9068

Hi All,

I'm trying to export a notebook with nbconvert to latex. How can I convert the code cells so that long code lines are wrapped?

My understanding is that if verbatim is switched to listings this can be done. However, I dont know what to do with commandchars if I switch.

Thanks for your help! and Im sorry about this basic question.

[Carreau]

@Carreau commented

That'a likely a jupyter/nbconvert issue, that can be done with custom templates.
There is not easy option.

#141 should help.

[Carreau]

@redraven984 commented

Thanks for getting back to me. Do you know what the 'commandchars' line does in verbatim?

[Carreau]

@Carreau commented

commandchars

No, I havent touched verbatim in years, sorry.

[ketch]

Has anybody gotten further with this? It looks like there is an escapechar option for the listings package, but it is used in a slightly different way than commandchars in fancyvrb.

[t-makaro]

commandchars in fancyvrb is used to allow pygments syntax highlighting, and so it is not needed in listings. I built a package that uses listings for pdf conversion over at nb_pdf_template in version 2.somthing.

However that is irrelevant now as #992 adds line wrapping without using listings.

[szethh]

This does not work for code blocks in markdown cells.

echo "Lorem ipsum..."

If the line is too long, it will just get cut off. It gets compiled to a verbatim environment, that does not seem to support breaking lines.

For code cells or plain markdown it does work.