title: Code still runs using old version of Python
body: <p>I have installed python 2.7 on my CentOS server.
  When I go into the python command line it tells me I'm using 2.7.
  When I issue a python -v command it reports 2.7.
  But when I run the script I'm working on and get it to output the version (using import sys   print(sys.version)) in use it reports the old version (2.4).</p>
  
  <p>Can anyone help me get it to run the code against the new version.
  Thanks.</p>