title: How to add variable in tkinter treeview widget?
body: <p>I need to add the value of another command into the value of a Treeview widget in tkinter but when i try the value in the gui ends up just saying &quot;none&quot;.</p>
  <pre><code>output = print(&quot;hello&quot;)
  tree.insert('', 'end', text=&quot;1&quot;, values=(output, '' , '',''))
  </code></pre>
  <p>How can i add the value of this variable into widget?</p>