[Python-Dev] [Distutils] how to easily consume just the parts of eggs that are good for you (original) (raw)
Gael Varoquaux gael.varoquaux at normalesup.org
Wed Apr 9 21:19:48 CEST 2008
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On Wed, Apr 09, 2008 at 02:26:31PM -0400, Stanley A. Klein wrote:
The rpm and deb package managers (and their yum and other higher level dependency managers) do a lot of things:
1. They install packages and maintain databases of what packages were installed 2. They manage dependencies 3. They support clean uninstalling of packages 4. They can query packages, both installed (via their databases) and not yet installed (e.g., as rpm or deb files), to determine attributes, such as files they install, dependencies, and other information defined at packaging time. 5. They build packages and (in some cases) can rebuild packages. 6. They can verify packages for integrity and security purposes. 7. They can download package files and maintain archives of installed package files for use as local repositories.
You are collapsing three different functionalities in one:
Dealing with repositories and downloading: yum/apt
Installing + uninstalling packages, and dealing with system consistency (thus checking the dependencies are available): rpm/dpkg
Building
For me it is important that the 3 are separated:
I may want to download the dependencies of a package to burn to a CD for a computer that does not have internet access.
I may want to send a tarball to a build server that does the building, but no install (so as not to corrupt my working system).
Cheers,
Gaël
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