#11383: Color('red') == Color('red') returns False
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       Reporter:  slabbe          |         Owner:  slabbe    
           Type:  defect          |        Status:  needs_work
       Priority:  major           |     Milestone:  sage-5.0  
      Component:  graphics        |    Resolution:            
       Keywords:  beginner, sd31  |   Work issues:            
Report Upstream:  N/A             |     Reviewers:            
        Authors:  Ryan Grout      |     Merged in:            
   Dependencies:                  |      Stopgaps:            
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Comment (by poeschko):

 As suggested, I added a new `__hash__` method (including doctests) that
 uses `__rgb` just like `__eq__` and did some minor code improvements in
 the original patch. Note that this is a rather "picky" approach, e.g.

 {{{
 sage: Color((0.99999,0.0,0.0)) == Color((1,0,0))
 False
 }}}

 All tests pass (in Sage 5.0.beta11 under Mac OS X 10.5.8/Intel), so I
 think this works fine.

 By the way (@kini), the issue with green is that

 {{{
 sage: Color('green').rgb()
 (0.0, 0.5019607843137255, 0.0)
 }}}

 so this is bound not be equal to `Color((0,1,0))`. `Color('lime')` is RGB
 green.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11383#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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