#11749: Remove unneeded imports
-------------------------------------------+--------------------------------
   Reporter:  robertwb                     |          Owner:  tbd            
       Type:  enhancement                  |         Status:  positive_review
   Priority:  major                        |      Milestone:  sage-4.7.2     
  Component:  performance                  |       Keywords:                 
Work_issues:                               |       Upstream:  N/A            
   Reviewer:  Keshav Kini, Leif Leonhardy  |         Author:  Robert Bradshaw
     Merged:                               |   Dependencies:                 
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Changes (by leif):

  * reviewer:  Keshav Kini => Keshav Kini, Leif Leonhardy


Comment:

 ''Ooops. I wrote this a few hours ago, but forgot to click the submit
 button.''


 Replying to [comment:7 robertwb]:
 > I generated the patch with this code, plus a handful (less than a dozen)
 manual touch-ups where, e.g., symbols were used in eval() strings but not
 directly.

 Ok, so it is rather conservative with the exception of `eval()` and
 friends.

 We should perhaps especially inspect those files modified that have a low
 "coverage"(though I strongly doubt the doctests of others will cover most
 execution paths...).


 I think more sophisticated detection of superfluous imports can be left
 for follow-up tickets, just like the inclusion of Cython files.

 The patch is certainly a big step forwards as is.

 ----

 P.S.: I'm pretty sure Robert knows about trac's wiki markup for source
 code etc. ;)

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11749#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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