On 24 Feb, 2009, at 16:20, P.J. Eby wrote:
Indeed. Having an index file would make things a whole lot simpler.For *whom*? Certainly not for system packaging tools (rpm, deb, et al).A design goal should be to allow system packaging tools to install a static file footprint: i.e., independent files with predefined content, and no post-processing steps. You can't do that with a shared file, which is why setuptools uses a .pth hack to install namespace packages when building packages for rpm et al.
What about another interoperability hook for system packages: specify a file that a (system) package manager can include into the egg-info directory (or egg-file) to tell setuptools/pip that this egg is managed by the system and hence shouldn't be removed by setuptools/pip.
Which such a file the user of python package tool could be warned if he tries to uninstall an egg that's owned by the system, instead of invoking the wrath of a sysadmin by removing such files.
Ronald
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