Aldryn Gallery is build on the principle of plugin-in-plugin provided by django-cms since version 3.0.
pip install aldryn-gallery
Add aldryn_gallery to INSTALLED_APPS.
Configure aldryn-boilerplates (https://pypi.python.org/pypi/aldryn-boilerplates/).
To use the old templates, set ALDRYN_BOILERPLATE_NAME='legacy'.
To use https://github.com/aldryn/aldryn-boilerplate-standard (recommended, will be renamed to
aldryn-boilerplate-bootstrap3) set ALDRYN_BOILERPLATE_NAME='bootstrap3'.
When using the legacy boilerplate, jQuery and
classjs cl.gallery are required.