I just downloaded Anaconda 4.2.0 (with python 3.5.2) for Mac OS X. Whenever I try to update any packages etc, my ipython console presents the package dependencies and displays \
Just Append -y to any command to say yes to all the yes/no questions. Most of the packages are configured in a way to work with this. For your:
!conda create -n graphlab-env python=2.7 anaconda -y