How to make Python run as fast (or faster) than Julia

[Python]

On Sat, Mar 03, 2018 at 08:18:03AM +1100, Chris Angelico wrote:
> > Python is often a preferred solution because it is often fantastic for
> > rapid implementation and maintainability.  The GIL's interference
> > with threaded code performance has, for me at least, on several
> > occasions been...  disappointing (perf costs of removing it aside)
> > because it gets in the way of choosing Python for such solutions.
> > Jython and IronPython are simply not feasible options for me, for
> > multiple reasons that have zero to do with their technical
> > suitability.
> 
> Have you actually tried it and run into problems, 

Yes.  It was years ago and I forget the details, but I even posted
some sample code here and was told (quite possibly by you) that it was
the GIL that was eating my lunch.  Someone suggested writing the bits
I wanted to thread as a C extension, which largely defeated the
purpose of using Python.  In at least one case I just used C++, and in
another I just ignored the problem until it went away.