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Tue Nov 28 15:48:01 EST 2017 · https://mail.python.org/pipermail/python-dev/2017-November/150922.html

On 2017-11-28 21:31, Raymond Hettinger wrote:
> 
>> I also cc python-dev to see if anybody here is strongly in favor or against this inclusion.
> 
> Put me down for a strong -1.   The proposal would occasionally save a few keystokes but comes at the expense of giving Python a more Perlish look and a more arcane feel.   
> 
> One of the things I like about Python is that I can walk non-programmers through the code and explain what it does.  The examples in PEP 505 look like a step in the wrong direction.  They don't "look like Python" and make me feel like I have to decrypt the code to figure-out what it does.
> 
>     timeout ?? local_timeout ?? global_timeout
>     'foo' in (None ?? ['foo', 'bar'])
>     requested_quantity ?? default_quantity * price
>     name?.strip()[4:].upper()
>     user?.first_name.upper()

Your examples have convinced me, -1 from me.

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[Python-Dev] What's the status of PEP 505: None-aware operators?