[Zope3-dev] Re: How to deal with major versions?

[Jim Fulton]

On May 31, 2007, at 4:04 AM, Chris Withers wrote:

> Jim Fulton wrote:
>> I don't see how this helps one say that they want to depend on a  
>> minimum version of a major version.  That is, how does it prevent  
>> dependencies like:
>>     foo >=1.0 <1.999
>> ?
>> I'm wondering how Gentoo got *that* right.
>
> I wonder if the package should have something in it's setup.py that  
> says "I won't be compatible with anything expecting version" <2.0 ?

You say that by sayng that you require >=2. (I suspect a typo on your  
part.)

> This would end up as metadata on pypi or in the egg/.tar.gz and  
> setuptools could do the "hard work" of resolving the dependencies...

Setuptools doesn't try that hard.  Someday, buildout will try a lot  
harder -- when necessary.


> It also removes the burden of specifying maximum revision numbers  
> on the consuming packages and puts it where it belongs: on the  
> maintainer of the package who knows if it's going to be backwards  
> compatible or not..

I don't understand that argument.  You still have to state a  
requirement.  Maybe I don't understand your proposal.

Jim

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