So it hasn&#x27;t been adopted, based on a sample size of 1?<p>New companies, like the one I&#x27;m part of, use Python 3, all the time. Django, and the other 15 packages we require, all support Python 3. In fact, I&#x27;ve been using Python 3 since 2008, and I&#x27;ve been using it for work since 2013. I think we&#x27;re past all of that, at this point.<p>I&#x27;m not sure why migration is always regarded as a metric for succes. Python 3 wasn&#x27;t supposed to be a &quot;upgrade&quot;, per se. It was supposed to allow the core to rid itself of a lot of the language&#x27;s warts. It has done this quite well without sacrificing much. The result was a slow migration, not by existing code bases, but by means of new companies.