Removing the GIL is a difficult problem: <a href="http:&#x2F;&#x2F;python-notes.curiousefficiency.org&#x2F;en&#x2F;latest&#x2F;python3&#x2F;multicore_python.html" rel="nofollow">http:&#x2F;&#x2F;python-notes.curiousefficiency.org&#x2F;en&#x2F;latest&#x2F;python3&#x2F;...</a>