#11716: remove twisted.persisted.styles import
---------------------------+------------------------------------------------
   Reporter:  saraedum     |          Owner:  jason     
       Type:  enhancement  |         Status:  new       
   Priority:  minor        |      Milestone:  sage-4.7.2
  Component:  misc         |       Keywords:            
Work_issues:               |       Upstream:  N/A       
   Reviewer:               |         Author:            
     Merged:               |   Dependencies:            
---------------------------+------------------------------------------------
 The import of ''twisted.persisted.styles'' takes a significant amount of
 time on sage startup:
 {{{
 $ time ./sage -startuptime|grep twisted.persisted.styles:
  twisted.persisted.styles: 0.093 (sage.all)

 real    0m1.422s
 }}}

 Most functionality from that module seems not to be used in sage. The
 attached patch removes everything but the needed functionality:
 {{{
 $ time ./sage -startuptime|grep twisted.persisted.styles:

 real    0m1.280s
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11716>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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