[Distutils] buildout 2.0.0b1 released

[Jim Fulton]

On Tue, Jan 22, 2013 at 9:11 AM, Reinout van Rees <reinout at vanrees.org> wrote:
> On 22-01-13 13:55, Jim Fulton wrote:
>>
>> Use zc.recipe.testrunner 1.3.0.  I plan to release a
>> zc.recipe.testrunner 2 that is just a copy of 1.3.0.:)
>
>
> Yes, that fixes it.
>
> Now I see a different problem:
>
>   File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2475, in
> scan_list
>     raise ValueError("Expected "+item_name+" in",line,"at",line[p:])
> ValueError: ('Expected version spec in', 'zc.buildout[] ==>=2.0.0b1', 'at',
> ' ==>=2.0.0b1')
>
>
> I boils down to buildout injecting minimum requirements for buildout and
> zc.recipe.egg in the version part like ">=2.0.0b1"
>
> Apparently this is new?

Yup

> buildout-versions expects only "real" versions in
> there, so it adds an "==", which results in a weird-looking fat arrow:
> "==>=2.0.0b1".
>
> I think I can compensate for that.
>
>
> But... is it true that you can put ">=" requirements in the versions list?

Yes:

http://pypi.python.org/pypi/zc.buildout/2.0.0b1#a5-2012-12-01
http://pypi.python.org/pypi/zc.buildout/1.7.0#id9

This isn't expected to be a widely used feature.

It's used by buildout 2 to keep itself from downgrading
itself to a final release.

It's used by buildout 1 to keep itself and
some recipes from upgrading to 2.

I'm surprised buildout 1.7.0 didn't break buildout-versions.

Jim

-- 
Jim Fulton
http://www.linkedin.com/in/jimfulton
Jerky is better than bacon! http://zo.pe/Kqm