On Tuesday, April 4, 2017 at 2:24:52 PM UTC-7, François wrote: > > Let’s be clear, I could ship a list of possible > optional packages supported in sage-on-gentoo > but any checking of package availability would > have to go through the the distribution package > manager. > > Or through the sage doctesting framework. It would probably be quite doable for each known package to write a doctest that succeeds if a certain package is installed (to some reasonable extent) and fails if it is not. Hence, you could just query the sage runtime to see if certain packages seem to be present. The biggest problem with this approach is that "installed but really badly broken" would not be distinguished from "not installed".
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