[Distutils] Problem with buildout and zc.recipe.cmmi

[Tarek Ziadé]

On Sat, Dec 12, 2009 at 2:56 PM, Reinout van Rees <reinout at vanrees.org> wrote:
> On 12/12/09 6:14 AM, Tres Seaver wrote:
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> James J Myers wrote:
>>>
>>> Next try was to change buildout to use minitage.recipe.cmmi and that
>>> works!
>>>
>>> So it appears that something changed in zc.recipe.cmmi in December that
>>> broke it.
>>
>> Unless you are using an SVN checkout of zc.recipe.cmmi, the latest
>> release was 1.3.1, 2009-09-10.  zc.buildout 1.4.3 was released
>> 2009-12-10, but its deltas don't appear to explain the behavior you
>> report.
>
> I'm also getting an error:
>
> While:
>  Installing.
>  Getting section lxml.
>  Initializing section lxml.
>  Installing recipe z3c.recipe.staticlxml >= 0.6.
>
> An internal error occured due to a bug in either zc.buildout or in a
> recipe being used:
> Traceback (most recent call last):
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/buildout.py",
> line 1660, in main
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/buildout.py",
> line 416, in install
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/buildout.py",
> line 964, in __getitem__
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/buildout.py",
> line 1048, in _initialize
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/buildout.py",
> line 1004, in _install_and_load
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/easy_install.py",
> line 800, in install
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/easy_install.py",
> line 663, in install
>  File
> "/private/var/folders/qC/qC6d69l0EDe-sx-yyKchqU+++TI/-Tmp-/tmpeuNbOC/zc.buildout-1.4.3-py2.5.egg/zc/buildout/easy_install.py",
> line 612, in _constrain
> AttributeError: 'str' object has no attribute 'project_name'
>
>
> I put a try/except in there and 'str' in this case is the string "The
> 'zc.recipe.cmmi' distribution was not found on this system, and is required
> by this application.".
>
> The staticlxml recipe uses zc.recipe.cmmi.
>
>
> The path to zc.buildout that's in the traceback isn't correct either: it is
> simply a shared egg, definitively not something in a temp folder :-)
>
>
> Weird... Well, I'm off cycling. I'll dig around a bit in zc.recipe.cmmi to
> see if it perhaps uses the basically one line in zc.buildout that changed
> with 1.4.3.
>
> Another option: does it have to do with distribute 0.6.9 that was just
> released? I pinned zc.buildout to 1.4.3 to allow it to update distribute
> from 0.6.8 to 0.6.9 (that was what the buildout fix was for, otherwise you'd
> get an infinite recursion).
>

Yes that's a problem introduced by 0.6.9.

I have changed the way the DistributionNotFound() exception is raised.
Unfortunately
zc.buildout does a str(error) to grab the name of the distribution,
leading to the problem you have

I am reverting this change and releasing 0.6.10 so people are not confused.

Then we can think about changing zc.buildout error handling.

Cheers,