Hi, I don't know if it was already discussed. If a (little) different approach is taken, such a (x)emacs or drscheme do.
In installing time, the install script detect which version are installed (I.e. emacs and/or xemacs) and then compile the source for each version. So, it's possible to install new modules to default, legacy and new version of Python, maintained only one package, using package dependency to know which Python version check. Specific modules are installed without check installed version Regards, Antal A. Buss
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