easy question on parsing python: "is not None"

Terry Reedy tjreedy at udel.edu
Fri Aug 6 20:20:45 CEST 2010


On 8/6/2010 5:27 AM, Richard D. Moores wrote:

> So there would be a different implementation for each operating
> system? One for Windows, one for linux? Or one for Vista and one for
> XP?  I'm just trying to clarify what is meant by "implementation".

Different version of CPython (that string caching bit has changed in the 
past) and CPython versus Jython, PyPy, IronPython, Cython, etc.

-- 
Terry Jan Reedy




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