Broken references in Virtualenvs

Question

I recently installed a bunch of dotfiles on my Mac along with some other applications (I changed to iTerm instead of Terminal, and Sublime as my default text editor) but eve

Answer 1

It appears the proper way to resolve this issue is to run

 pip install --upgrade virtualenv

after you have upgraded python with Homebrew.

This should be a general procedure for any formula that installs something like python, which has it's own package management system. When you install brew install python, you install python and pip and easy_install and virtualenv and so on. So, if those tools can be self-updated, it's best to try to do so before looking to Homebrew as the source of problems.