D4313: pycompat: wrap xrange for py2 to provide efficient __contains__

[indygreg (Gregory Szorc)]

indygreg accepted this revision.
indygreg added a comment.
This revision is now accepted and ready to land.


  This seems reasonable.
  
  Out of curiosity, what code is doing an expensive membership test and do you have timing numbers that could be included in the commit message?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D4313

To: joerg.sonnenberger, #hg-reviewers, indygreg
Cc: indygreg, mercurial-devel