title: Two containers - two Pythons - one site-packages?
body: <p>Let's assume I have two separate docker (or some other) containers which may only share folders with each other. There is a Python interpreter of the same version installed in both of these containers. Is there any way to make these interpreters to share almost the same PYTHONPATH, e.g. for both of them see all packages installed in any of these containers?</p>
  
  <p>I know I can just import packages from a folder, but I want do find out if it's possible to do such steps:</p>
  
  <ol>
  <li>Install package A in first container with pip or easy_install. This package may depend on other packages, which are located in second container and somehow mounted to first one. Also, there are some possible dependencies (which second container is missing) which will be installed into first container.</li>
  <li>Inside second container import package A from first container without issues, so it should see both dependencies located in first and second containers.</li>
  </ol>
  
  <p>The thing is, I'm trying to use <a href="http://stevedore.readthedocs.org/en/latest/" rel="nofollow">stevedore</a> to look for packages by entry points, but they should be installed and, possibly, upgraded independently from what's installed in second container.</p>