title: Does Django Atomic Transaction lock the database?
body: <p>When you do:</p>
  
  <pre><code>@transaction.atomic
  def update_db():
      do_bulk_update()
  </code></pre>
  
  <p>while the function is running, does it lock the database?</p>
  
  <p>I'm asking regarding django's atomic transaction:
  <a href="https://docs.djangoproject.com/en/1.10/topics/db/transactions/#autocommit-details" rel="noreferrer">https://docs.djangoproject.com/en/1.10/topics/db/transactions/#autocommit-details</a></p>