#17119: Disallow pari(None)
-------------------------------------+-------------------------------------
       Reporter:  jdemeyer           |        Owner:
           Type:  enhancement        |       Status:  positive_review
       Priority:  major              |    Milestone:  sage-6.4
      Component:  interfaces         |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  Jeroen Demeyer     |    Reviewers:  Peter Bruin
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/jdemeyer/ticket/17119            |  4476266587733622582d32b1b7015c56ae97bf69
   Dependencies:                     |     Stopgaps:
-------------------------------------+-------------------------------------

Comment (by vbraun):

 THe UW buildbot slaves set `$HOME` so that they don't share the cython
 cache:
 {{{
 sage -t --long src/sage/libs/pari/gen.pyx
 **********************************************************************
 File "src/sage/libs/pari/gen.pyx", line 2479, in
 sage.libs.pari.gen.gen.Strexpand
 Failed example:
     pari('"$HOME"').Strexpand() == pari('["~"]').Strexpand()
 Expected:
     True
 Got:
     False
 **********************************************************************
 }}}
 You can test that `~` expands to something else than `~`, but it doesn't
 really need to match `$HOME`.

--
Ticket URL: <http://trac.sagemath.org/ticket/17119#comment:9>
Sage <http://www.sagemath.org>
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