Case Statements

Wed Mar 16 09:38:17 EDT 2016

Op 16-03-16 om 12:07 schreef Mark Lawrence:
> On 16/03/2016 10:52, Antoon Pardon wrote:
>> Op 16-03-16 om 10:51 schreef Mark Lawrence:
>>> On 16/03/2016 09:35, Antoon Pardon wrote:
>>>> Op 16-03-16 om 09:47 schreef Mark Lawrence:
>>>>>>>>>>>>>>>>> Same with switch. You can use a hash table etc. to simulate
>>>>>> switches,
>>>>>> but only if the codeblocks are independent. Otherwise, if-elif
>>>>>> chains
>>>>>> are the way to go. Command line parsing is a case where switch
>>>>>> statements are often used, e.g. in shell scripts.
>>>>>>>>>> I've seen at least six different ways of simulating switches, so
>>>>> those
>>>>> people who want them, can have them. if-elif chains are not
>>>>> likely to
>>>>> kill any Python programmer.
>>>>>>>>>> I have no interest what other languages use switch/case statements
>>>>> for, as we've on the PYTHON mailing list.
>>>>>>>> There once were multiple ways to simulate a conditional expression.
>>>> And it was generally thought that using if else statements instead
>>>> of a conditional expression was unlikely to kill any Python
>>>> programmer.
>>>>>>>> But then one of the core developers was bitten by a nasty bug because
>>>> he was using one of those constructs that simulated a conditional
>>>> expression and soon enough Python had a conditional expression.
>>>>>>>> So I guess those who would like a case statement in Python can
>>>> only hope a core developer gets bitten by a nasty bug while using
>>>> one of those ways of simulating switches.
>>>>>>>>>> So that core developers can waste their time putting something into
>>> the language that we've done without for 25 years, yes, that strikes
>>> me as extremely worthwhile.
>>>> Do you think python should stop progressing? Because all progress
>> python wil make, will be done by putting something in the language
>> we've done without for 25 years.
>>>> That we have done without doesn't contradict it can be useful to have.
>>>> Raise the item on the python-ideas mailing list for the umpteenth time
> then, and see how far you get.

I don't care enough. I do care about people using valid arguments.
-- 
Antoon Pardon