[GHC] #9184: Allow the use of Python 3 when building GHC

[GHC]

#9184: Allow the use of Python 3 when building GHC
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        Reporter:  aspidites   |            Owner:
            Type:  feature     |           Status:  new
  request                      |        Milestone:
        Priority:  normal      |          Version:  7.8.2
       Component:  Build       |         Keywords:  python
  System                       |     Architecture:  Unknown/Multiple
      Resolution:              |       Difficulty:  Easy (less than 1 hour)
Operating System:              |       Blocked By:
  Unknown/Multiple             |  Related Tickets:
 Type of failure:              |
  None/Unknown                 |
       Test Case:              |
        Blocking:              |
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Comment (by monoidal):

 You've changed `lambda (f,x):` to `lambda f, x:`. They're not the same!

 Apart from that, looks good to me. The `__future__` import is not
 supported in 2.5, but that version is so old I think there's no point in
 supporting it (and it's likely the scripts currently don't work with it,
 anyway).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9184#comment:2>
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