On 27/07/18 17:23, Schachner, Joseph wrote:
Re: "...while

    thing == None
would work perfectly in almost all cases in practice, it's unidiomatic and suggests 
the writer isn't quite comfortable with the workings of the language"

I admit, I've been a C++ programmer for many years and a Python programmer for only about 
5 years.  But, I did learn something here.  I've read books on Python and somehow still 
did not know that None is guaranteed to be a singleton in all implementations, and that 
not only does "thing is None" therefore work (guaranteed), but that that is the 
Pythonic thing to do.  ...   Maybe I missed it, but I'll remember it now.

--- Joseph S.


Your apology is accepted.  Thank you.

--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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