On Thu, Dec 5, 2019, 5:53 PM Mark Shannon <mark@hotpy.org> wrote:


On 04/12/2019 2:31 am, Gregory P. Smith wrote:
>
>
> On Tue, Dec 3, 2019 at 8:21 AM Mark Shannon <mark@hotpy.org
> <mailto:mark@hotpy.org>> wrote:
>
>     Hi Everyone,
>
>     I am proposing a new PEP, still in draft form, to impose a limit of one
>     million on various aspects of Python programs, such as the lines of
>     code
>     per module.
>
>     Any thoughts or feedback?
>

[snip]

>
>
> Overall I /like/ the idea of limits... /But.../ in my experience, limits
> like this tend to impact generated source code or generated bytecode,
> and thus any program that transitively uses those.
>
> Hard limits within the Javaish world have been *a major pain* on the
> Android platform for example.  I wouldn't call workarounds
> straightforward when it comes to total number of classes or methods in a
> process.

Do you have any numbers? 1M is a lot bigger then 64K, but real world
numbers would be helpful.

I guess the relevant case in question is with Facebook patching the limit of 65,000 classes in Android :  https://m.facebook.com/notes/facebook-engineering/under-the-hood-dalvik-patch-for-facebook-for-android/10151345597798920

>
> If we're to adopt limits where there were previously none, we need to do
> it via a multi-release deprecation cycle feedback loop to give people a
> way to find report use cases that exceed the limits in real world
> practical applications.  So the limits can be reconsidered or the
> recommended workarounds tested and agreed upon.
>
> -gps
_______________________________________________
Python-Dev mailing list -- python-dev@python.org
To unsubscribe send an email to python-dev-leave@python.org
https://mail.python.org/mailman3/lists/python-dev.python.org/
Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/ECKES7IPWGD74DAKFYV7JEWNOBAFEWYF/
Code of Conduct: http://python.org/psf/codeofconduct/