Re: [Numpy-discussion] [matplotlib-devel] [SciPy-dev] Announcing toydist, improving distribution and packaging situation
On Sun, Jan 3, 2010 at 3:27 AM, Andrew Straw <strawman@astraw.com> wrote:
Typically, the dependencies only depend on the smallest subset of what they require (if they don't need lapack, they'd only depend on python-numpy-core in your example), but yes, if there's an unsatisfiable condition, then apt-get will raise an error and abort. In practice, this system seems to work quite well, IMO.
Yes, but: - debian dependency resolution is complex. I think many people don't realize how complex the problem really is (AFAIK, any correct scheme to resolve dependencies in debian requires an algorithm which is NP-complete ) - introducing a lot of variants significantly slow down the whole thing. I think it worths thinking whether our problems warrant such a complexity.
Anyhow, here's the full Debian documentation: http://www.debian.org/doc/debian-policy/ch-relationships.html
This is not the part I am afraid of. This is: http://people.debian.org/~dburrows/model.pdf cheers, David
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David Cournapeau