[Catalog-sig] Stable-releases-only PyPi

[Tarek Ziadé]

On Mon, Jul 11, 2011 at 9:56 PM, Sergey Schetinin <sergey at maluke.com> wrote:
> On 11 July 2011 22:47, Tarek Ziadé <ziade.tarek at gmail.com> wrote:
>> On Mon, Jul 11, 2011 at 9:32 PM, Sergey Schetinin <sergey at maluke.com> wrote:
>>> On 11 July 2011 22:20, Tarek Ziadé <ziade.tarek at gmail.com> wrote:
>>>> On Mon, Jul 11, 2011 at 9:03 PM, Sergey Schetinin <sergey at maluke.com> wrote:
>>>> ...
>>>>>
>>>>> That webapp (it's not *really* a proxy) took me about two hours total,
>>>>> and it has to query pypi, guess what is stable and not, cache the
>>>>> results.
>>>>
>>>> how do you guess it ? that's an interesting part
>>>
>>> Well, I mentioned it in linked post. Basically at first I was doing just this:
>>>
>>> _rx_final = re.compile(r'[\d\.]+\Z')
>>>
>>> def is_final(ver):
>>>    return bool(_rx_final.match(ver))
>>>
>>> But to implement the most-stable filter, I changed it to this:
>>> http://pastebin.com/JVVAJ9hE
>>
>> there must be a bug because all the versions I am trying are marked stable
>> (even 'lalala')
>
> Not a bug. It marks the most stable versions available:
>
>>>> mark_stable(['lala'])
> [('lala', True)]
>>>> mark_stable(['lala', '1.0'])
> [('lala', False), ('1.0', True)]
>>>> mark_stable(['0.1a1'])
> [('0.1a1', True)]
>>>> mark_stable(['0.1a1', '0.1b1'])
> [('0.1a1', False), ('0.1b1', True)]
>>>> mark_stable(['0.1a1', '0.1b1', '0.1'])
> [('0.1a1', False), ('0.1b1', False), ('0.1', True)]

ah ok :D

...
>>
>> Yeah, the mirror is standalone or it breaks its intent (being useful
>> when PyPI is down)
>
> It's unfortunate this instability was accepted for granted.

Yeah, well we've made a lot of progress with PEP 386 / Metadata 1.2

Right now you can still push projects with a version number being
"bazinga-boomya". Try to sort this..

PyPI will reject non-pep 386 versions with the newest metadata 1.2,
that's why I am pushing hard on its adoption on client-side because
it's a better long term solution.

Having to guess if a version is stable or not with a version scheme
that's free-form is quite a pain. The short-term fix that works well
is to ask people not to push unstable stuff at pypi... people can
always pick unstable version on the project website

Cheers
Tarek

-- 
Tarek Ziadé | http://ziade.org