title: How to specify Python location when using gsutil Tool
body: <p>I have the gsutil Tool installed on a CentOS 6.5 box which requires Python 2.6. According to CentOS 6.5 docs, we can't upgrade this to Python 2.7, but we can install and use Python 2.7 as a separate install to 2.6 as long as 2.6 remains as the system default. I have installed Python 2.7 already as its own stand-alone instance and it is working fine. </p>
  
  <p>According to Google, gsutils will not support Python 2.6 after 9/1/2016:</p>
  
  <blockquote>
    <p>Warning: You are running Python 2.6, which stopped receiving security patches as of October 2013. gsutil will stop supporting Python 2.6 on September 1, 2016. Please update your Python installation to 2.7 to ensure compatibility with future gsutil versions.</p>
  </blockquote>
  
  <p>I'm looking for a way to point gsutils to the directory where Python 2.7 is installed without changing the env variables or anything that affects the default 2.6 installation. Any help would be greatly appreciated.</p>