Goto (Posting On Python-List Prohibited)

[bartc]

On 30/12/2017 23:54, Chris Angelico wrote:
> On Sun, Dec 31, 2017 at 10:45 AM, bartc <bc at freeuk.com> wrote:
>> On 30/12/2017 23:26, Gregory Ewing wrote:
>>>
>>> bartc wrote:
>>>>
>>>> B and C occur twice, so a goto is a quick way to reuse B and C without
>>>> needing to duplicate code,
>>>
>>>
>>> This only works if the repeated part happens to be at the
>>> tail of each case.
>>
>>
>> IME that seems to be the most common situation.
>>
> 
> I've written code that uses dirty tricks like that to avoid
> duplication. It's at least as much of a problem as actual duplication
> is. Generally, the 'goto' solution results in subsequent programmers
> (such as my future selves) staring at the code for 30-60 seconds to
> figure out what it's doing. I don't like to do that to myself, much
> less to people I actually admire and respect.

The problem is having to stare at the code for even longer to figure out 
the even dirtier tricks you had to use to avoid gotos.