" href="../../source/watchme.html#watchme.defaults.getenv">[docs]</a><span class="k">def</span> <span class="nf">getenv</span><span class="p">(</span><span class="n">variable_key</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">required</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">silent</span><span class="o">=</span><span class="kc">True</span><span