Color printing should be an option (or should be the default?)

[aroberge]

Buried in the css files are various @media print configurations which prevent color printing. They can be edited by hand if one has access to the installation directories, but there should be a way to have color printing be done without this type of editing.

[willingc]

@aroberge Thanks for the suggestion. Personally, I never noticed that printing defaults to B&W whether from the Print Preview menu option or the browser print menu (at least on Firefox).

@Carreau @ellisonbg Is there a setting that can be easily changed to enable color printing? If so, it would seem reasonable to document here and the user docs.

[ellisonbg]

Hmm, I don't think we set anything that makes it BW. We will have to look
into this.

On Sat, Dec 12, 2015 at 3:54 AM, Carol Willing notifications@github.com
wrote:

@aroberge https://github.com/aroberge Thanks for the suggestion.
Personally, I never noticed that printing defaults to B&W whether from the
Print Preview menu option or the browser print menu (at least on Firefox).

@Carreau https://github.com/carreau @ellisonbg
https://github.com/ellisonbg Is there a setting that can be easily
changed to enable color printing? If so, it would seem reasonable to
document here and the user docs.

—
Reply to this email directly or view it on GitHub
#840 (comment).

Brian E. Granger
Associate Professor of Physics and Data Science
Cal Poly State University, San Luis Obispo
@ellisonbg on Twitter and GitHub
bgranger@calpoly.edu and ellisonbg@gmail.com

[aroberge]

I've installed Jupyter + IPython using the Anaconda Python distribution. In my system, the relevant css file is (if I am not mistaken):
Anaconda3/pkgs/notebook-4.06-py34_0/Lib/site-packages/notebook/static/style/style.min.css

Edit: from memory, there were two places where I removed code from the css file to print everything in color. The first place was near the @media print declaration; the second was a setting for html tables if I recall correctly.

[Carreau]

This is a bootstrap thing that include a print.less with !important.
It's not easy to get rid of, but we can try.

[mjbright]

Any progress on this?
Let me bump this one - it's really important to me.

I'm using Jupyter (+bash_kernel) to create some labs (Docker) where I use Jupyter to create the lab and then create a PDF to distribute to the students-*.

Those documents would be much more readable in colour.

Thanks for a great tool !

• • Putting Jupyter/bash_kernel combination into the hands of students would be confusing and unworkable due to long-running or interactive commands, so I use it just as my preparation tool - and it's fantastic for that.

  https://github.com/mjbright/jupyter_notebooks/tree/master/2016-Feb_Docker_Build_Lab

[Carreau]

@mjbright have you tried the conversion to PDF via latex ? (it likely fail because of some ansi escape sequence but that's a bug that should be opened)(opened as jupyter/nbconvert#228)

Are you afraid of a custom IPython build ? Basically set-up a dev environment,
modify <repo root>/notebook/static/components/bootstrap/less, to remove line 13 @import "print.less";, and recompile CSS (python setup.py css)

That should be enough (understand it works for me locally), unfortunately that something that make the build process extremely inconvenient for downstream (like Debian) as then we use a modified version of our dependencies.

[mjbright]

Hi Matthias,

I did try briefly PDF via latex (quite a week I don't even remember if it
was under RHEL7, Ubuntu-trusty or Win8 that I tried) but without early
installation success I abandoned - because of soe lab setup constraints.
I'll try again with my Ubuntu (a Vagrant box) ... when I have time (?).

Afraid of a custom IPython build? A little (time wise) but i'll consider
that also.
Mind you why are we talking about IPython?

Thanks for the suggestions,
Mike.

On 4 February 2016 at 07:21, Matthias Bussonnier notifications@github.com
wrote:

@mjbright https://github.com/mjbright have you tried the conversion to
PDF via latex ? (it likely fail because of some ansi escape sequence but
that's a bug that should be opened)

Are you afraid of a custom IPython build ? Basically set-up a dev
environment,
modify /notebook/static/components/bootstrap/less, to remove
line 13 @import "print.less";, and recompile CSS (python setup.py css)

That should be enough (understand it works for me locally),
unfortunately that something that make the build process extremely
inconvenient for downstream (like Debian) as then we use a modified
version of our dependencies.

—
Reply to this email directly or view it on GitHub
#840 (comment).

[mjbright]

Hi, following a suggestion somewhere on StackOverflow, I think, I modified
that equivalent path on my Ubuntu system.

The following context diff shows what I tried (out of informed ignorance).
Restarting Jupyter didn't improve the situation.

Just in case someone has a quick hack to suggest ...

---

/home/vagrant/anaconda3/pkgs/notebook-4.1.0-py35_0/lib/python3.5/site-packages/notebook/static/style/style.min.
css     2016-02-04 05:37:14.921859360 +0000

---

/home/vagrant/anaconda3/pkgs/notebook-4.1.0-py35_0/lib/python3.5/site-packages/notebook/static/style/style.min.
css.orig        2016-02-04 05:35:56.893856260 +0000

---

**\* 192,198 ****

*:before,

*:after {

background: transparent !important;

!     /\* To allow colour printing: color: #000 !important;*/

box-shadow: none !important;

text-shadow: none !important;

}

--- 192,198 ----

*:before,

*:after {

background: transparent !important;

!     color: #000 !important;

box-shadow: none !important;

text-shadow: none !important;

}

---

**\* 242,252 ****

.dropup > .btn > .caret {

border-top-color: #000 !important;

}

-   /\* To allow colour printing:
  
  .label {
  
    border: 1px solid #000;
  
  }
-   */
  
  .table {
  
    border-collapse: collapse !important;
  
  }

--- 242,250 ----

On 12 December 2015 at 19:45, André Roberge notifications@github.com
wrote:

I've installed Jupyter + IPython using the Anaconda Python distribution.
In my system, the relevant css file is (if I am not mistaken):

Anaconda3/pkgs/notebook-4.06-py34_0/Lib/site-packages/notebook/static/style/style.min.css

—
Reply to this email directly or view it on GitHub
#840 (comment).

[Carreau]

Mind you why are we talking about IPython?

gah, old habits and it was late at night, I was of course trying to say Jupyter Notebook

Hi, following a suggestion somewhere on StackOverflow, I think, I modified
that equivalent path on my Ubuntu system.

Force reload the page (Ctrl-Shift-R, likely) the browsers can have agressive caching.

[mjbright]

La honte (duh!) for Ctrl-Shift-R !
Thanks Matthieu, I have colour printing now !!

On 4 February 2016 at 18:15, Matthias Bussonnier notifications@github.com
wrote:

Mind you why are we talking about IPython?

gah, old habits and it was late at night, I was of course trying to say Jupyter
Notebook

Hi, following a suggestion somewhere on StackOverflow, I think, I modified
that equivalent path on my Ubuntu system.

Force reload the page (Ctrl-Shift-R, likely) the browsers can have
agressive cahing.

—
Reply to this email directly or view it on GitHub
#840 (comment).

[willingc]

That's wonderful! 🌅

Thanks @Carreau 👍

[aroberge]

I am curious as to why has this just been closed? It still requires custom editing of one file in the distribution if I am not mistaken. If I understand correctly, the Ctrl-Shift-R was just done so that the browser would use the file edited by hand but the underlying problem is still there.