Django template issue

[meren]

The way we initialize Django templates will soon be obsolete, and it needs a fix.

To reproduce the problem run the mini test once:

cd tests/
./run_mini_test.sh

You will get this warning at some point in the process:

RemovedInDjango110Warning: You haven't defined a TEMPLATES setting. You must do so before
upgrading to Django 1.10. Otherwise Django will be unable to load templates.
     "unable to load templates.", RemovedInDjango110Warning)

To get it over and over again, you can simply run this from within the tests/ directory:

anvi-summarize -p sandbox/test-output/204-MERGED/PROFILE.db -c sandbox/test-output/CONTIGS.db -o sandbox/test-output/204-MERGED-SUMMARY -C 'CONCOCT'

The relevant code is in the anvio/summaryhtml.py file, and it looks like this:

try:
    from django.conf import settings
    absolute = os.path.join(os.path.dirname(os.path.realpath(__file__)))
    template_dir = os.path.join(absolute, 'data/static/template')
    html_content_dir = os.path.join(absolute, 'data/static/content')
    settings.configure(DEBUG=True, TEMPLATE_DEBUG=True, DEFAULT_CHARSET='utf-8', TEMPLATE_DIRS = (template_dir,))

    try:
        import django
        django.setup()
    except:
        pass

    from django.template.loader import render_to_string
    from django.template.defaultfilters import register
except ImportError:
    raise ConfigError, 'You need to have Django module (http://djangoproject.com) installed on your system to generate HTML output.'

Something changes here, and the warning goes away. That is my intuition, however, I didn't have an opportunity to extensively research this.

If @gkmngrgn or @ozcanesen wants to sevabına take a stab at this, I would be forever grateful ;) Otherwise I will get back to this before Django people release v1.10!

[gkmngrgn]

@meren you can assign me, I will look at this night.

[meren]

Yay :) Feel free to release yourself from this burden if it ends up taking much of your time. I'm afraid the fix is going to be a one-liner, but finding the right one might take some time.

Best,

[meren]

You are the best, Gokmen. Thank you very much.