GNU bug report logs - #41730
[PATCH] gnu: Fix propagations of python-prompt-toolkit-2.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: goodoldpaul <at> autistici.org
To: guix-patches <at> gnu.org
Subject: [PATCH] gnu: Fix propagations of python-prompt-toolkit-2.
Date: Fri, 05 Jun 2020 23:07:06 +0000

[Message part 1 (text/plain, inline)]

Hello Guix!

On Guix System

  guix ecab53c
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: ecab53c320b1584a08f811b17a92bd9a50a50ff3

it's impossible to install jupyter in a new profile because it tries to 
propagate two different versions of python-ipython, you should be able 
to reproduce with:

guix package -p /tmp/tmp-prof -i jupyter

I believe since 32ba87c14fd5e5b54d95211cd9a159d568ce7c67 many packages 
whose tests depend on version python-prompt-toolkit at version 2 yield 
conflicts when installed in a profile.

I attached a patch to propagate the right versions.

Giacomo

[0001-gnu-Fix-propagations-of-python-prompt-toolkit-2.patch (text/x-diff, attachment)]

Message #8 received at 41730 <at> debbugs.gnu.org (full text, mbox):

From: paul <goodoldpaul <at> autistici.org>
To: 41730 <at> debbugs.gnu.org
Subject: Re: [PATCH] gnu: Fix propagations of python-prompt-toolkit-2.
Date: Sat, 6 Jun 2020 17:39:02 +0200

[Message part 1 (text/plain, inline)]

Hi everybody, a little update about this patch,

I just found out that it doesn't actually fix the problem: the 
requirement for prompt 2 is enforced also at runtime.

The output of guix package _without_ my patch is:


$ guix package -p /tmp/tmp-profile -i jupyter
The following package will be installed:
   jupyter 1.0.0

guix package: error: profile contains conflicting entries for python-ipython
guix package: error:   first entry: python-ipython <at> 7.9.0 
/gnu/store/z0yarar134q6sziqncjdlfg2h2w5b2yh-python-ipython-7.9.0
guix package: error:    ... propagated from python-ipywidgets <at> 7.5.1
guix package: error:    ... propagated from jupyter <at> 1.0.0
guix package: error:   second entry: python-ipython <at> 7.9.0 
/gnu/store/avmg5jd7kccchxadsd9c7zq0p3shlk3w-python-ipython-7.9.0
guix package: error:    ... propagated from python-qtconsole <at> 4.4.3
guix package: error:    ... propagated from jupyter <at> 1.0.0
hint: You cannot have two different versions or variants of `jupyter' in 
the same profile.


With my patch applied it is possible to install jupyter without 
conflicts but when started it crashes asking for prompt-toolkit at 
version 2. The conflict seems to be caused because:

- 
/gnu/store/avmg5jd7kccchxadsd9c7zq0p3shlk3w-python-ipython-7.9.0depends 
on python-prompt-toolkit <at> 3.0.5

- 
/gnu/store/z0yarar134q6sziqncjdlfg2h2w5b2yh-python-ipython-7.9.0depends 
on python-prompt-toolkit <at> 2.0.7

Please ignore the previous patch, I apologize for the noise. I'm opening 
an actual bug report and I'll start working on a fix ASAP.


Giacomo

[Message part 2 (text/html, inline)]

Message #13 received at 41730-done <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <rekado <at> elephly.net>
To: Edouard Klein <edk <at> beaver-labs.com>
Cc: 41889-done <at> debbugs.gnu.org, 41730-done <at> debbugs.gnu.org,
 41738-done <at> debbugs.gnu.org
Subject: Re: [bug#41889] [PATCH] gnu: jupyter: Fix python-ipython conflict
 that prevented installation
Date: Tue, 16 Jun 2020 19:37:04 +0200

Hi Edouard,

thank you for providing a fix.  I think it’s too complicated, though.
Using prompt-toolkit-2-instead-of-prompt-toolkit everywhere does not
seem like an elegant solution.

I pushed a different fix with commit 7146c8c75d.

-- 
Ricardo

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