IPython note book is very useful tool. When I tried to use ipython notebook, I got following error. To avoid this error, change the default encode from “ascii” to “utf-8”. Put the setcustomize.py file in your site-packages/directly. I’m using virtualenv, so I put that file in => /Users/iwatobipen/python_test_env/lib/python2.7/site-packages Then retry “IPython notebook” command, it worksContinue reading “UnicodeDecodeError”