On Wed, 11 Oct 2017 21:56:26 +0200
ludo@gnu.org (Ludovic Courtès) wrote:

> Hello,
> 
> Christopher Baines <mail@cbaines.net> skribis:
> 
> > This fixes running ipython console and ipython3 console.
> >
> > As python-ipython is an input to python-jupyter-console, depend on
> > a modified version of the package which doesn't have this input.
> >
> > * gnu/packages/python.scm (python-ipython)[propagated-inputs]: Add
> > a modified version of python-jupyter-console.  
> 
> [...]
> 
> > @@ -5851,6 +5851,31 @@ tools for mocking system commands and
> > recording calls to those.") ("python-numpy" ,python-numpy)
> >         ("python-numpydoc" ,python-numpydoc)
> >         ("python-jinja2" ,python-jinja2)
> > +       ("python-jupyter-console"
> > +        ;; The python-ipython and python-jupyter-console require
> > each
> > +        ;; other. To get the functionality in both packages
> > working, strip
> > +        ;; down the python-jupyter-console package when using it
> > as an input
> > +        ;; to python-ipython.
> > +        ,(package
> > +           (inherit python-jupyter-console)
> > +           (arguments
> > +            (substitute-keyword-arguments
> > +                (package-arguments python-jupyter-console)
> > +              ((#:phases phases)
> > +               `(modify-phases ,phases
> > +                  (add-after 'install 'delete-bin
> > +                    (lambda* (#:key outputs #:allow-other-keys)
> > +                      ;; Delete the bin files, to avoid conflicts
> > in profiles
> > +                      ;; where python-ipython and
> > python-jupyter-console are
> > +                      ;; both present.
> > +                      (delete-file-recursively
> > +                       (string-append
> > +                        (assoc-ref outputs "out") "/bin"))))))))
> > +           ;; Remove the python-ipython propagated input, to avoid
> > the cycle
> > +           (propagated-inputs
> > +            (remove (lambda (input)
> > +                      (string=? (car input) name))
> > +                    (package-propagated-inputs
> > python-jupyter-console)))))  
> 
> For clarity, perhaps we should declare the above as
> ‘python-jupyter-console-minimal’ (also with a ‘name’ field)?
> 
> Also, the (remove …) expression at the end can be rewritten as:
> 
>   (alist-delete name (package-propagated-inputs
> python-jupyter-console))
> 
> Otherwise LGTM, thanks!

Thanks for reviewing Ludo, I've made these changes and pushed :)