Intentando instalar la barra de herramientas de depuración de django y recibiendo el siguiente error:

Traceback (most recent call last):
  File "/home/user/project/manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
  File "/home/user/project/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/home/user/project/env/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 312, in execute
django.setup()
  File "/home/user/project/env/local/lib/python2.7/site-packages/django/__init__.py", line 18, in setup
apps.populate(settings.INSTALLED_APPS)
  File "/home/user/project/env/local/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
app_config = AppConfig.create(entry)
  File "/home/user/project/env/local/lib/python2.7/site-packages/django/apps/config.py", line 86, in create
module = import_module(entry)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
ImportError: No module named analysisdebug_toolbar

Versiones del paquete:

Django==1.8.2
django-debug-toolbar==1.3.0

Lo curioso es que esto solía funcionar, pero de alguna manera se rompió debido a algunos cambios en el proyecto.