On 12/4/17 9:31 PM, Rick Johnson wrote:
On Monday, December 4, 2017 at 7:47:20 PM UTC-6, Ned Batchelder wrote:
[...]
Here are details filled in:
$ python3.6
Python 3.6.3 (default, Oct 4 2017, 06:03:25)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.37)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> def do_the_thing(seq, n):
... item = seq[n:n+1]
... if item:
... print(f"process({item})")
... else:
... print("do_without_item()")
...
>>> do_the_thing([1, 2, 3], 2)
process([3])
>>> do_the_thing([1, 2, 3], 5)
do_without_item()
>>>
Thanks for filling in the blanks. However, my objection to
this else-clause stems from a perspective based in
pragmatics. Specifically, i see no benefit here in logging
the "non-action". Sure, perhaps logging a non-action may serve a
useful purpose during debugging sessions, but i find them to
be nothing but useless noise in production code.
Do you agree or disagree with my assessment?
If you disagree, please explain why.
The point of the example was to demonstrate what happens when slicing
beyond the bounds of the list. It's beyond the scope of the thread to
debate whether you might want to perform an action in that case. I
think we've demonstrated the slicing semantics well.
--Ned.
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