Anyone knows good Django URL namespaces tutorial? [closed]

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I'm looking for a good tutorial for URL namespaces in Django. I find official documentation a little too sparse - it lacks good examples. I found similar question here on stack, but the answers didn't help me to fully understand the subject either.

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Agreed, the docs for this are rather confusing. Here's my reading of it (NB: all code is untested!):

In apps.help.urls:

urlpatterns = [
    url(r'^$', 'apps.help.views.index', name='index'),
    ]

In your main urls.py:

urlpatterns = [
    url(r'^help/', include('apps.help.urls', namespace='help', app_name='help')),
    url(r'^ineedhelp/', include('apps.help.urls', namespace='otherhelp', app_name='help')),
    ]

In your template:

{% url help:index %}

should produce the url /help/.

{% url otherhelp:index %}

should produce the url /ineedhelp/.

{% with current_app as 'otherhelp' %}
    {% url help:index %}
{% endwith %}

should likewise produce the url /ineedhelp/.

Similarly, reverse('help:index') should produce /help/.

reverse('otherhelp:index') should produce /ineedhelp/.

reverse('help:index', current_app='otherhelp') should likewise produce /ineedhelp/.

Like I said, this is based on my reading of the docs and my existing familiarity with how things tend to work in Django-land. I haven't taken the time to test this.

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This is from the docs

(r'^help/', include('apps.help.urls', namespace='foo', app_name='bar')),

Maybe you should be more specific about what you are trying to do.