Merged revisions 72368 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r72368 | benjamin.peterson | 2009-05-05 18:13:58 -0500 (Tue, 05 May 2009) | 53 lines

  Merged revisions 68503,68507,68694,69054,69673,69679-69681,70991,70999,71003,71695 via svnmerge from
  svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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    r68503 | benjamin.peterson | 2009-01-10 14:14:49 -0600 (Sat, 10 Jan 2009) | 1 line

    use variable
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    r68507 | benjamin.peterson | 2009-01-10 15:13:16 -0600 (Sat, 10 Jan 2009) | 1 line

    rewrap
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    r68694 | benjamin.peterson | 2009-01-17 17:55:59 -0600 (Sat, 17 Jan 2009) | 1 line

    test for specific node type
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    r69054 | guilherme.polo | 2009-01-28 10:01:54 -0600 (Wed, 28 Jan 2009) | 2 lines

    Added mapping for the ttk module.
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    r69673 | benjamin.peterson | 2009-02-16 09:38:22 -0600 (Mon, 16 Feb 2009) | 1 line

    fix handling of as imports #5279
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    r69679 | benjamin.peterson | 2009-02-16 11:36:06 -0600 (Mon, 16 Feb 2009) | 1 line

    make Base.get_next_sibling() and Base.get_prev_sibling() properties
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    r69680 | benjamin.peterson | 2009-02-16 11:41:48 -0600 (Mon, 16 Feb 2009) | 1 line

    normalize docstrings in pytree according to PEP 11
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    r69681 | benjamin.peterson | 2009-02-16 11:43:09 -0600 (Mon, 16 Feb 2009) | 1 line

    use a set
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    r70991 | benjamin.peterson | 2009-04-01 15:54:50 -0500 (Wed, 01 Apr 2009) | 1 line

    map urllib.urlopen to urllib.request.open #5637
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    r70999 | benjamin.peterson | 2009-04-01 17:36:47 -0500 (Wed, 01 Apr 2009) | 1 line

    add very alpha support to 2to3 for running concurrently with multiprocessing
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    r71003 | benjamin.peterson | 2009-04-01 18:10:43 -0500 (Wed, 01 Apr 2009) | 1 line

    fix when multiprocessing is not available or used
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    r71695 | benjamin.peterson | 2009-04-17 22:21:29 -0500 (Fri, 17 Apr 2009) | 1 line

    refactor multiprocessing support, so it's less hacky to employ and only loads mp when needed
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1 files changed, 11 insertions, 3 deletions

diff --git a/Lib/lib2to3/main.py b/Lib/lib2to3/main.py
index d37fe9e..084fc0c 100644
--- a/Lib/lib2to3/main.py
+++ b/Lib/lib2to3/main.py
@@ -10,8 +10,7 @@ import optparse
 
 from . import refactor
 
-
-class StdoutRefactoringTool(refactor.RefactoringTool):
+class StdoutRefactoringTool(refactor.MultiprocessRefactoringTool):
     """
     Prints output to stdout.
     """
@@ -64,6 +63,8 @@ def main(fixer_pkg, args=None):
                       help="Fix up doctests only")
     parser.add_option("-f", "--fix", action="append", default=[],
                       help="Each FIX specifies a transformation; default: all")
+    parser.add_option("-j", "--processes", action="store", default=1,
+                      type="int", help="Run 2to3 concurrently")
     parser.add_option("-x", "--nofix", action="append", default=[],
                       help="Prevent a fixer from being run.")
     parser.add_option("-l", "--list-fixes", action="store_true",
@@ -126,7 +127,14 @@ def main(fixer_pkg, args=None):
         if refactor_stdin:
             rt.refactor_stdin()
         else:
-            rt.refactor(args, options.write, options.doctests_only)
+            try:
+                rt.refactor(args, options.write, options.doctests_only,
+                            options.processes)
+            except refactor.MultiprocessingUnsupported:
+                assert options.processes > 1
+                print >> sys.stderr, "Sorry, -j isn't " \
+                    "supported on this platform."
+                return 1
         rt.summarize()
 
     # Return error status (0 if rt.errors is zero)