[Distutils] setuptools dependencies failure and wildcards

Nick Bower nick at petangent.net
Sun Mar 14 22:49:24 CET 2010


Thanks but why would easy install go to pypi, ignore the obvious  
download urls and proceed to an external wiki to text search for a (as  
you point out broken) URL. Ie why not satisfy the dependency from the  
pypi page alone?

Clearly I'm new to setup tools so if this is answered elsewhere  
appologies.

On 15/03/2010, at 3:18 AM, "P.J. Eby" <pje at telecommunity.com> wrote:

> At 09:16 PM 3/14/2010 +1100, Nicholas Bower wrote:
>> I have the following simple dependencies using setuptools;
>>
>>      install_requires=['shapely==1.0.14','sqlalchemy==0.5.8'],
>>
>> Two questions;
>>
>> 1) Shapely will not work.  The available packages are;
>>
>> Shapely-1.0.14.win32.py24.exe (md5).
>> Shapely-1.0.14.win32.py25.exe (md5).
>> Shapely-1.0.14.win32.py26.exe (md5).
>>
>> but python version is not being appended as below.  Is shapely thus
>> incompatible with setuptools?
>
> No; the problem is that there's a broken link on the Shapely home  
> page at http://trac.gispython.org/lab/wiki/Shapely - it links to a  
> non-existent .exe file in this line:
>
> "Windows users should use the executable <http://pypi.python.org/packages/2.5/S/Shapely/Shapely-1.0.14.win32.exe#md5=92281555b23623b8cf7b4fbc9d01f17a 
> > installer, which contains the required GEOS DLL"
>
> easy_install is seeing this link and thinks it's preferable, due to  
> the way it sorts candidate URLs, and it isn't smart enough (yet) to  
> backtrack on broken links.
>
> You can work around this by adding 'dependency_links=[]' to your  
> setup(), replacing the [] with a list of specific links to the  
> individual .exe files; this will keep easy_install from ever reading  
> the PyPI page or wiki page with the broken link.
>
> Of course, you should also suggest the shapely maintainers fix the  
> broken link, since it is broken for humans as well as for  
> easy_install.  ;-)
>
>
>> 2) How does one say "the latest release of sqlalchemy 0.5.x".
>> Unfortunately <0.6 picks up 0.6beta and I can see no way to do
>> wildcards in the docs and just say "give me the latest 0.5 series".
>
> <0.6dev will do the trick.
>


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