Symbol not found: __PyCodecInfo_GetIncrementalDecoder

[alexaubrey]

ImportError: dlopen(/Users/user/anaconda/envs/graph_analysis/lib/python2.7/lib-dynload/_io.so, 2): Symbol not found: __PyCodecInfo_GetIncrementalDecoder
  Referenced from: /Users/user/anaconda/envs/graph_analysis/lib/python2.7/lib-dynload/_io.so
  Expected in: flat namespace
 in /Users/user/anaconda/envs/graph_analysis/lib/python2.7/lib-dynload/_io.so

I followed the instructions on http://www.opengraphiti.com/. The exception occurs when performing ./graphiti in the dataViz dir.
Any thoughts or suggestions on why this may be occurring?