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Re: failed to install the python-umap-learn package

From: zimoun
Subject: Re: failed to install the python-umap-learn package
Date: Tue, 29 Sep 2020 16:56:36 +0200

Dear Hong Li,

On Tue, 29 Sep 2020 at 16:09, Ludovic Courtès <> wrote:
> "" <> skribis:
> > I had a failure when installing python-umap-learn in guix. It took very 
> > long time in the 'check' phase.

Usually, if "guix weather python-umap-learn" says that there is no
substitute, then it is a bad sign. :-)

> > The error does not change before and after 'guix pull'. Could you please 
> > tell me how to solve this problem?

Thank you for pointing out the issue.  Using the Guix Data Service,

one can see the versions which build and the ones which fail (mainly
because dependencies, apparently).  One the last Succeeded row, you
can click on the revision 2020-04-18 19:24:20 which indicates the last
known commit where python-umap-learn builds.  Therefore, you can run:

   guix time-machine --commit=cac674d99dc4a332e6210c57ec7f1b8164f66642 \
          -- package -i pyhton-umap-learn

Hope that helps.

> It would seem that one of the tests of python-numba is failing, perhaps
> in a non-deterministic way.

>From the Guix Data Service, the first offending commit is
cac674d99dc4a332e6210c57ec7f1b8164f66642 which updates python-cython.

All the best,

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