On Fri, Sep 9, 2016 at 3:01 PM, Arek Bulski <arek.bul...@gmail.com> wrote:
> Sometimes I find myself in need of this nice operator that I used back in
> the days when I was programming in .NET, essentially an expression
>
>>>> expr ?? instead
>
> should return expr when it `is not None` and `instead` otherwise.
>
> A piece of code that I just wrote, you can see a use case:
>
> def _sizeof(self, context):
> if self.totalsizeof is not None:
> return self.totalsizeof
> else:
> raise SizeofError("cannot calculate size")
>
> With the oprator it would just be
>
> def _sizeof(self, context):
> return self.totalsizeof ?? raise SizeofError("cannot calculate
> size")
This was proposed almost exactly a year ago, start reading here:
https://mail.python.org/pipermail/python-ideas/2015-September/036289.html
--
Zach
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