title: How to create a nested dictionary
body: <p>so I have some problems with my dictionaries in python. For example I have dictionary like below:</p>
  
  <pre><code>d1 = {123456:xyz, 892019:kjl, 102930491:{[plm,kop]}
  d2= {xyz:987, kjl: 0902, plm: 019240, kop:09829}
  </code></pre>
  
  <p>And I would like to have nested dictionary that looks something like that.</p>
  
  <pre><code>d={123456 :{xyz:987}, 892019:{kjl:0902}, 102930491:{plm:019240,kop:09829}}
  </code></pre>
  
  <p>is this possible? I was searching for nested dictionaries but nothing works for me. </p>