#13781: Doctests in rings/polynomial/polynomial_modn_dense_ntl.pyx test the 
wrong
implementation
---------------------------+------------------------------------------------
       Reporter:  mjo      |         Owner:  AlexGhitza
           Type:  defect   |        Status:  new       
       Priority:  major    |     Milestone:  sage-5.6  
      Component:  algebra  |    Resolution:            
       Keywords:           |   Work issues:            
Report Upstream:  N/A      |     Reviewers:            
        Authors:           |     Merged in:            
   Dependencies:  13782    |      Stopgaps:            
---------------------------+------------------------------------------------

Comment (by mjo):

 Naturally, there was a bug hiding:

 {{{
 sage: R.<x> = PolynomialRing(Integers(101), implementation='ntl')
 sage: ~x
 ---------------------------------------------------------------------------
 TypeError
 ...
 TypeError: Cannot convert
 sage.rings.polynomial.polynomial_modn_dense_ntl.Polynomial_dense_mod_p to
 sage.rings.polynomial.polynomial_zmod_flint.Polynomial_zmod_flint
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13781#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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