ImportError: cannot import name SortedDict

edit

During the "Initial Configuration of Askbot" step from the documentation, I ran into this error when trying to consolidate the static files:

$ python manage.py collectstatic

Traceback (most recent call last):
File "manage.py", line 10, in <module>
  execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 350, in execute_from_command_line
  utility.execute()
File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 324, in execute
  django.setup()
File "/usr/local/lib/python2.7/site-packages/django/__init__.py", line 18, in setup
  apps.populate(settings.INSTALLED_APPS)
File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
  app_config = AppConfig.create(entry)
File "/usr/local/lib/python2.7/site-packages/django/apps/config.py", line 123, in create
  import_module(entry)
File "/usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
  __import__(name)
File "/usr/local/lib/python2.7/site-packages/askbot/deps/livesettings/__init__.py", line 14, in <module>
  from askbot.deps.livesettings.functions import *
File "/usr/local/lib/python2.7/site-packages/askbot/deps/livesettings/functions.py", line 2, in <module>
  from askbot.deps.livesettings import values
File "/usr/local/lib/python2.7/site-packages/askbot/deps/livesettings/values.py", line 12, in <module>
  from django.utils.datastructures import SortedDict
ImportError: cannot import name SortedDict

I've installed askbot using the pip install method. I'm unfamiliar with Python's package management, so not sure where to start.