Why exceptions for error handling is so important

Paulo Pinto via Digitalmars-d digitalmars-d at puremagic.com
Tue Jan 13 06:24:04 PST 2015


On Tuesday, 13 January 2015 at 13:28:04 UTC, Ola Fosheim Grøstad 
wrote:
> On Tuesday, 13 January 2015 at 12:53:15 UTC, Paulo  Pinto wrote:
>> As long as it is only used for scripting nothing.
>>
>> But when people remember to use it for writing applications, 
>> then it is just plain slow and I don't see PyPy fixing that.
>
> But you don't need everything in an application to be fast, so 
> you can tie components together with scripting. Python is 
> essentially built up around having reasonably fast components 
> that are plugged together. But I expect that Python will be 
> displaced with something that can compile efficiently to 
> javascript.
>
> One should keep in mind that  javascript is plenty fast for 
> UI-bindings. It is the C++ part of browsers (layout engine) 
> that is the slowest part today, IMO. When WebCL becomes 
> available in browsers you probably could do the majority of 
> applications in the browser. That is kinda scary.
>
> So the utility of compiled languages is shrinking fast. A 
> language that makes it easy to connect building blocks and also 
> can be used on both a server and in a webclient (compilable to 
> javascript) will probably win in the long run.
>
>> There is a reason why Go is getting Ruby and Python developers.
>
> Sure, Go is useful for web related infrastructure, has static 
> typing, provides decent concurrency and latency and is more 
> "lightweight" than JVM. Good all round qualities.

Sure, but JavaScript enjoys some of the best JIT compilers for 
dynamic languages, whereas Python has a JIT compiler that still 
is catching up with the current language version, doesn't support 
most of the extensions and is ignored by the CPython developers.

If PyPy becomes the official implementation, then I will change 
my mind.

Please note I used Python a lot while at CERN, so I do know the 
eco-system.


--
Paulo



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