That might be it. I remember it as an article. Maybe http://lukauskas.co.uk/articles/2014/02/13/why-your-python-runs-slow-part-1-data-structures/ http://lukausk

That might be it. I remember it as an article. Maybe http://lukauskas.co.uk/articles/2014/02/13/why-your-python-runs-slow-part-1-data-structures/ http://lukauskas.co.uk/articles/2014/02/13/why-your-python-r...