On 2015-09-06 22:38, Simon King wrote:
Would you say that <interface>.version() should be consistent in the
type of the return value, i.e., that it should always return a string?
Or do you think it is ok that some interfaces return a string, some
return a pair formed by a tuple and a string, some return an interface
element that looks like a list?
Well, most importantly, I think that package-version.txt should *not* be
used. Especially in the light of future packaging efforts, we should not
use anything from the $SAGE_ROOT/build directory at runtime.
My vote for the version number goes to this:
sage: gp.version()
((2, 8, 0), 'GP/PARI CALCULATOR Version 2.8.0 (development git-489005a)')
because the tuple gp.version()[0] can be used like
sage: gp.version()[0] >= (2,8,0)
True
and there is also a human-readable string gp.version()[1] which can be
used for display purposes.
Alternatively, we could have two functions
sage: gp.version()
'GP/PARI CALCULATOR Version 2.8.0 (development git-489005a)'
sage: gp.version_tuple()
(2, 8, 0)
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