[Distutils] (How) do setuptools/distribute/pip handle circular dependencies?

[Alex Clark]

On 2012-11-13 12:16:43 +0000, Vinay Sajip said:

> Alex Clark <aclark <at> aclark.net> writes:
> 
>> 
>> Just jumping in here, but I don't think that the distribute
>> distribution providing the setuptools module is indicative of a fork.
>> It's an example of a distribution that does not contain a module name
>> you'd expect it to, based on the distribution name. PIL is another
>> example: from PIL import Image. And in the case of PIL at least, the
>> fork distribution name does not change anything: pip install Pillow;
>> from PIL import Image.
> 
> Sure, but my main point was about having "Provides" be a multi-valued field,
> which opens the door to a lot of complexity for perhaps little or no benefit. I
> don't have any problem with the use of "Provides" as a canonical name for a
> distribution. Even before Pillow came along, there used to be confusion, IIRC,
> between the names "Imaging" and "PIL".


Ah, in that case I think that makes me +1 for a mult-valued Provides 
(whatever that is, is this a PEP discussion?) because there are times 
when you want to provide multiple packages in a single distribution. 
E.g.

    packages=[
        'foo',
        'bar',
    ],
    package_dir={
        'foo': 'foo',
        'bar': 'bar',
    },


where the distribution looks like this:

foo-bar/foo/foo/__init__.py
foo-bar/bar/bar/__init__.py

And this reminds me of a question I had that I'll now ask in a separate 
thread :-)


> 
> Regards,
> 
> Vinay Sajip
> 
> _______________________________________________
> Distutils-SIG maillist  -  Distutils-SIG at python.org
> http://mail.python.org/mailman/listinfo/distutils-sig


-- 
Alex Clark · https://www.gittip.com/aclark4life/