BUG: x-www-browser: import distutils.spawn
BUG: ipython_config: Python 3: io.StringIO
BUG: ipython_config: env['CONDA_HOME__py34']
BUG: ipython_config: typo: VENVSTRAPP
BUG,ENH: _setup_conda, workon_conda, mkvirtualenv_conda, rmvirtualenv_conda