Blastvisu need Biopython

[lecorguille]

During Emma intership, the visualisation was a tool and works well.
During Caroline intership, the visualisation become a real visualisation and work well on her setup.

But on a production Galaxy instance, Biopython is needed but seems not available

Module blastvisu_mako:68 in render_body         view
>>  from Bio.Blast import NCBIXML
ImportError: No module named Bio.Blast

So, we will need to find a way:

• install Biopython
• use an alternative to parse the xml file

[bgruening]

I guess you need to have this installed into the Galaxy venv to make it work.
@guerler is it possible to have a requirement tag inside the visualisation.xml file? This way we could hook up arbitrary dependencies in visualisations.

[lecorguille]

Indeed, my next move will be to install Biopython in the Venv. But I was surprise because the user galaxy can access to the lib Biopython installed on the cluster.
I haven't search so much.

And sure, it would be great if there is a system of tool dependenties.