#20382: Replace is_package_installed with Features
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Reporter: saraedum | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-7.2
Component: build | Resolution:
Keywords: | Merged in:
Authors: Julian Rüth | Reviewers: Nicolas M. Thiéry,
Report Upstream: N/A | ...
Branch: | Work issues:
u/saraedum/replace_is_package_installed_with_features| Commit:
Dependencies: | 2a594ee16f72f7bebd06f82d0fdadfe8a526f178
| Stopgaps:
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Comment (by saraedum):
Replying to [comment:15 nthiery]:
> Yep there is value in the autoconf approach. On the other hand, since
this is mostly about doctests at this point, a version information is more
useful for the user: "oh, I need to upgrade to 3.5" is simpler than "oh, I
need to upgrade to a recent enough version that supports method xxx on
object yyy". We could do both: make a feature check, and provide a version
number for user reporting; but that's more work. Another advantage of
version checking is that you just need to fetch the version once, and
don't need to relaunch, e.g a GAP command, each time you want to check
another feature.
>
Sure. Both options are valid. They are not in the scope of this ticket I
think. In either case, such "features" can easily be added to Feature.
--
Ticket URL: <http://trac.sagemath.org/ticket/20382#comment:21>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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