bug#41729: jupyter cannot be installed

[Edouard Klein]

This is my fault,

python-ipython accepts both python-prompt-toolkit-2 and the latest
version, python-prompt-toolkit (3), but some packages that depend on
ipython accept only python-prompt-toolkit-2.

I messed up with jupyter, I didn't realize that another input depended
on ipython also.

I'll try to fix it. I can't early this week, but I'll work on it
starting wednesday.

I'm sorry for the inconvenience.





Ricardo Wurmus writes:

> --8<---------------cut here---------------start------------->8---
> building /gnu/store/rb5cigrwvqgm87hxpf553g283lc2j6px-jupyter-1.0.0.drv...
> guix package: error: profile contains conflicting entries for python-ipython
> guix package: error:   first entry: python-ipython@7.9.0 
> /gnu/store/z0yarar134q6sziqncjdlfg2h2w5b2yh-python-ipython-7.9.0
> guix package: error:    ... propagated from python-ipywidgets@7.5.1
> guix package: error:    ... propagated from jupyter@1.0.0
> guix package: error:   second entry: python-ipython@7.9.0 
> /gnu/store/avmg5jd7kccchxadsd9c7zq0p3shlk3w-python-ipython-7.9.0
> guix package: error:    ... propagated from python-qtconsole@4.4.3
> guix package: error:    ... propagated from jupyter@1.0.0
> hint: You cannot have two different versions or variants of `jupyter' in the 
> same profile.
> --8<---------------cut here---------------end--------------->8---
>
> The reason here is that python-ipywidgets asks for
>
>     (prompt-toolkit-2-instead-of-prompt-toolkit python-ipython)
>
> whereas python-qtconsole just wants python-ipython.  The result is that
> two different variants of python-ipython are requested.