title: Combine two JSON dictionaries in Python?
body: <p>I'm trying to combine two JSON dictionaries. So far I have a JSON file(myjfile.json) with the contents</p>
  <pre><code>{&quot;cars&quot;: 1, &quot;houses&quot;: 2, &quot;schools&quot;: 3, &quot;stores&quot;: 4}
  </code></pre>
  <p>Also, I have a dictionary(mydict) in Python which looks like this:</p>
  <pre><code>{&quot;Pens&quot;: 1, &quot;Pencils&quot;: 2, &quot;Paper&quot;: 3}
  </code></pre>
  <p>When I combine the two, they are two different dictionaries.</p>
  <pre><code>with open('myfile.json' , 'a') as f:
    json.dump(mydict, f)
  </code></pre>
  <p>Note that the myfile.json is being written with 'a' and a /n in the code because I want to keep the contents of the file and start a new line each time it's being written to.</p>
  <p>I want the final result to look like</p>
  <pre><code>{&quot;cars&quot;: 1, &quot;houses&quot;: 2, &quot;schools&quot;: 3, &quot;stores&quot;: 4, &quot;Pens&quot;: 1, &quot;Pencils&quot;: 2, &quot;Paper&quot;: 3}
  </code></pre>