Explanation of list reference
rustompmody at gmail.com
Sun Feb 16 15:00:30 CET 2014
On Saturday, February 15, 2014 7:14:39 PM UTC+5:30, Marko Rauhamaa wrote:
> Mark Lawrence:
> > I have no interest in understanding object identity, I can write code
> > quite happily without it.
> Luckily, what we are now debating is mostly terminology and points of
> view where the outcomes are unaffected.
> However, as an example, it is important to know if you should write:
> if x is not None:
> or if
> if x != None:
> is more robust.
Yes This is my main beef:
Not that both are possible but that the first is *recommended* and the second not.
Something like a C compiler manual advising:
You can write x*8 but its better to drop out into asm and write
shl $3, %eax
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