[GeoNode-devel] GeoNode dependencies breaking & Pypi consistency

Jeremiah Cooper jcooper at jeremiahcooper.com
Thu Oct 19 15:50:57 PDT 2017

+1 to this.  MapStory has seen these breaking changes as well.  Pinning
everything would help alleviate having to track down which dependency broke
the build every time it happens.  It's happened several times just in the
past few weeks.


Jeremiah Cooper

On Thu, Oct 19, 2017 at 5:54 PM, Travis Brundage <tbrundage at boundlessgeo.com
> wrote:

> Hi all,
> Recently I have seen some core GeoNode behaviour breaking due to changes
> in our dependencies. This isn't the first time it's happened. What happens
> is that we have many dependencies pulling in the latest version via >= in
> our requirements, but something changes which conflicts with current
> technology or otherwise is broken, causing core GeoNode to break as well.
> In addition, I'd like for us to have consistency in regards to GeoNode and
> its sub projects in pypi. Establishing the pypi repo as consistent with the
> official repos for the dependencies will ensure changes are visible and
> (hopefully) reviewed. This will help at least partially with preventing
> broken dependencies. One possibility is introducing some automation here
> through a continuous integration tool, so there are regular builds to pypi
> straight off the repos in GeoNode. This method may help establish a
> consistent cycle and also ensure we're diligent about quality in changes to
> the code.
> For the dependencies breaking, we can start pinning versions in our
> requirements (that is, using == instead of >= in requirements.txt). The
> upside of this is we will have consistent, expected behaviour that won't
> change due to updates. The downside of this is we won't necessarily have
> the most recent versions of dependencies, which we will want to
> occasionally update. I feel pinning versions makes sense, but we should
> make sure to update dependencies regularly. Before making this change, we
> should check what versions are actually being used and working with
> GeoNode, as >= will pull later versions, so simply doing a find+replace of
> >= to == won't be correct.
> Cheers,
> Travis
> --
> Travis Brundage
> Software Engineer | Boundless
> tbrundage at boundlessgeo.com
> 250.888.2820 <(250)%20888-2820>
> @boundlessgeo
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