 if variable is not defined it will define it.
<strong>Override</strong> flags environment variable as changeable by derivative program articles.</p>
</div>
<div class="section" id="accessing-environment-variables">
<h1>Accessing environment variables</h1>
<pre class="code python literal-block">
<span class="keyword namespace">import</span> <span class="name namespace">projenv</span>
<span class="name">env</span><span class="operator">=</span><span class="name">projenv</span><span class="operator">.</span><