#5452 HIGH 8.2.0 (: Beat XP in activity startup time.

[Zarro Boogs per Child]

#5452: Beat XP in activity startup time.
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   Reporter:  cscott     |       Owner:  cjb                 
       Type:  defect     |      Status:  new                 
   Priority:  high       |   Milestone:  8.2.0 (was Update.2)
  Component:  distro     |     Version:                      
 Resolution:             |    Keywords:                      
Next_action:  never set  |    Verified:  0                   
  Blockedby:             |    Blocking:                      
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Comment(by mtd):

 Replying to [comment:8 tomeu]:
 > So I would be surprised if using lazy imports in this way would bring
 any improvements, I would just expect a small amount of overhead.

 I agree -- the code was just so others could see how the naive approach
 really won't get much.

 > If lazy imports are to be useful, it should be applied to all modules,
 without having to change code. We should move the module initialization
 from import time to first-use time.

 autoimp would do this.  We (in theory) would be able to replace all
 imports with "import autoimp" and then things would be imported only as
 necessary.  Perhaps this would be useful at least just to establish an
 upper-bound to the benefits of lazy importing, as security / stability
 considerations might preclude its use in real life.

 To be fair cscott mentioned Pippy, and not (or only by implication) all
 sugar apps are slow by inherent sugar design.

 > Perhaps we should patch python? I think that for python 3k there will be
 hooks that will allow to do this kind of things without patching.

 Maybe someone is interested in enabling this lazy-import behavior a crazy,
 runtime-option for py3k?  So we don't have to do it...

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Ticket URL: <http://dev.laptop.org/ticket/5452#comment:10>
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