title: python shell subprocess without waiting?
body: <p>I'd like to be able to kick off a big batch of jobs in the background without using bash scripts and keep working on the same kernel. Is this possible? I am open to architecture changes, but the end user of my library is likely not very sophisticated.</p>
  <pre><code>[1] create_batch = my_batch.create(**batch_input)
  
  [2] run_batch = start_async_process(
          # real python... not bash
          sleep(9999)
          #my_batch.execute_jobs()
      )
  
  [3] print(&quot;i can still to do stuff while that runs!&quot;)
  
  [4] my_batch.get_status()
  </code></pre>
  <ul>
  <li>The <code>[]</code> represent ipython cells.</li>
  <li>python 3.7.6 from within JupyterLab</li>
  </ul>