title: How to correctly call jsonnet with imports from Python
body: <p>I'm using jsonnet to build json objects that will be used by Python code, calling jsonnet from Python using the <a href="http://jsonnet.org/ref/bindings.html" rel="noreferrer">bindings</a>.  I want to set up my directory structure so that the jsonnet files are in a subdirectory or subdirectories relative to where the Python code is run, something like:</p>
  
  <p><code>foo.py
  jsonnet/
  jsonnet/bar.jsonnet
  jsonnet/baz.libsonnet
  </code></p>
  
  <p>Running <code>foo.py</code> should then be able to use <code>_jsonnet.evaluate_snippet()</code> on strings read from files in <code>jsonnet/</code> that import other files from <code>jsonnet/</code>.  What's the best way to do this?</p>