bitpay/copay — pull request #597 by ethers (2014-06-08 05:42:37+00:00)
Title: Python 2.6 is required for gyp

Document the problem (http://stackoverflow.com/questions/21155922/error-installing-node-gyp-on-ubuntu) and suggest a solution (use a Python version manager eg pyenv). This is especially helpful for Ubuntu 14.04 which comes with Python 2.7.