#15567: Fix Alphabet and improvements to Family
-------------------------+-------------------------------------------------
       Reporter:         |        Owner:  sage-combinat
  tscrim                 |       Status:  needs_info
           Type:         |    Milestone:  sage-6.1
  defect                 |   Resolution:
       Priority:  major  |    Merged in:
      Component:         |    Reviewers:  Nathann Cohen
  combinatorics          |  Work issues:
       Keywords:         |       Commit:
  alphabet               |  baaabd695e6aa168e02ef6ac2d933e9338e663b9
        Authors:         |     Stopgaps:
  Travis Scrimshaw       |
Report Upstream:  N/A    |
         Branch:         |
  public/15567           |
   Dependencies:         |
-------------------------+-------------------------------------------------
Changes (by ncohen):

 * reviewer:   => Nathann Cohen


Comment:

 > Your way of doing things only suppresses the commit message that's put
 on trac, there is still the merge in the git history. However I'm not for
 rewriting history on a branch on a ticket.

 I do not understand. Why would it suppress the commit message put on trac
 ? Trac is perfectly able to display two commits at once ?.. `O_o`
 And there is absolutely no history rewriting going on. I am just telling
 you how I avoid compiling commits based on old beta releases, which seemed
 to be a problem for you.

 > I've fixed the errors I found, standardized the exception messages, and
 did some other cleanup of documentation in `family.py`.

 I see.

 > I swap the arguments to be consistent with `PolynomialRing` and because
 it makes it more user-friendly (at least less requirement of the user to
 look at the doc).

 I think that's a terrible behaviour.

 > As I believe you are aware, `name` is not used as a `prefix`, so we let
 it be (and if you meant `names`, then see Vincent's request).

 I meant 'names', of course.

 Well.

 At least now there is some doc in this function.

 > I don't exactly think `Alphabet` should be in the global namespace since
 it's not a class, but it doesn't bother me leaving it around since it is a
 natural (historical) guess/entry point (and if you want to deprecate it,
 please do so on another ticket).

 I actually thought of deprecating "build_alphabet". Looks like a bad think
 to put in the global namespace.

 Okay, positive review to that, and those methods are a bit better now than
 they were when we began this patch `:-P`

 Nathann

 P.S. : I will add a commit in a second to fix 2 typos

--
Ticket URL: <http://trac.sagemath.org/ticket/15567#comment:28>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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