I love assert

Ethan Furman ethan at stoneleaf.us
Wed Nov 12 23:47:06 CET 2014


On 11/12/2014 02:41 PM, Ian Kelly wrote:
> On Wed, Nov 12, 2014 at 3:13 PM, Anton <anschatten at gmail.com> wrote:
>> On Wednesday, November 12, 2014 2:05:17 PM UTC-8, Ian wrote:
>>> You don't need to remove it. Just reorganize it to make sure it
>>> indicates actual exhaustion of possibilities. E.g. using the "assert
>>> False" pattern from your post:
>>>
>>> if status == OK:
>>>      ...
>>> elif status == ERROR:
>>>      ...
>>> elif status == WARNING:
>>>      ...
>>> else:
>>>      assert False
>>
>> If the code is run optimized and asserts are ignore CONFUSED statement would still not be handled and you will not know about it.
>> I would do something like:
>
> There's no way to make the CONFUSED status be handled without actually
> changing the code. The difference is that this version will not
> incorrectly treat CONFUSED as WARNING; it just won't do anything at
> all if the code is optimized.

So, a different wrong thing, but still a wrong thing.  ;)

--
~Ethan~



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