Drop python2 support
This mostly consists in removing the dependency on "six" and updating
the code to use only Python3 idioms.
Notice that we previously used TemporaryDirectory from
cubicweb.devtools.testlib for compatibility with Python2. We now
directly import it from tempfile.
Startup views
-------------
Startup views are views requiring no context, from which you usually start
browsing (for instance the index page). The usual selectors are
:class:`~cubicweb.predicates.none_rset` or :class:`~logilab.common.registry.yes`.
You'll find here a description of startup views provided by the framework.
.. automodule:: cubicweb.web.views.startup
Other startup views:
*schema*
A view dedicated to the display of the schema of the instance
.. XXX to be continued