I noticed the several attempted imports of the multiprocessing module when debugging autoinstall: http://trac.webkit.org/changeset/53011/trunk/WebKitTools/Scripts/webkitpy/executive.py It might be nice to move the import statement to the top, and not use a try-catch construct.
Created attachment 51273 [details] Proposed patch
Created attachment 51279 [details] Proposed patch 2 On second thought, try-except is probably better in this case. Did you find that it was necessary to include NotImplementedError?
Comment on attachment 51279 [details] Proposed patch 2 Ok
Comment on attachment 51279 [details] Proposed patch 2 Clearing flags on attachment: 51279 Committed r56336: <http://trac.webkit.org/changeset/56336>
All reviewed patches have been landed. Closing bug.