way.  The project tree and its packages are treated as nodes in a tree.
Each node can be evaluated and have its own representation of the environment.</p>
<div class="section" id="single-project-environment-tree">
<h2>Single Project Environment Tree</h2>
<dl class="docutils">
<dt>At each node, environment is evaluated in the following sequence:</dt>
<dd><ol class="first last arabic simple">
<li>.projectenv, if available, is read and set.</li>
<li>Next packageenv, if available, is read and set.</li>
<li>Fina