title: How to install pip for a specific python version
body: <p>I have my deployment system running CentOS 6. </p>
  
  <p>It has by default python 2.6.6 installed. So, "which python" gives me /usr/bin/python (which is 2.6.6)</p>
  
  <p>I later installed python3.5, which is invoked as python3 ("which python3" gives me /usr/local/bin/python3)</p>
  
  <p>Using pip, I need to install a few packages that are specific to python3. So I did pip install using:-
  "sudo yum install python-pip"
  So "which pip" is /usr/bin/pip.</p>
  
  <p>Now whenever I do any "pip install", it just installs it for 2.6.6. :-(</p>
  
  <p>It is clear that pip installation got tied to python 2.6.6 and invoking pip later, only installs packages for 2.6.6.</p>
  
  <p>How can I get around this issue?</p>