, get information on various objects.</p>
<div class="section level3">
<h3 id="creating-files-groups-and-datasets">Creating files, groups and datasets<a class="anchor" aria-label="anchor" href="#creating-files-groups-and-datasets"></a>
</h3>
<p>But first things first. We create a random filename in a temporary
directory and create a file with read/write access, deleting it if it
already exists (it won’t - tempfile gives us a name of a file that
doesn’t exist yet).</p>
<div class="sourceCode" id="cb1"><p