after typing pip install virtualenv into terminal:
Requirement already satisfied (use --upgrade to upgrade): virtualenv in /anaconda/lib/python3.5/site-packages
after typing virtualenv venv into terminal:
Using base prefix '//anaconda’
New python executable in /Users/rhnock/projects/myhellowebapp/venv/bin/python
ERROR: The executable /Users/rhnock/projects/myhellowebapp/venv/bin/python is not functioning
ERROR: It thinks sys.prefix is ‘/Users/rhnock/projects/myhellowebapp’ (should be ‘/Users/rhnock/projects/myhellowebapp/venv’)
ERROR: virtualenv is not compatible with this system or executable