Blocked revisions 70405 via svnmerge

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  r70405 | georg.brandl | 2009-03-15 23:11:07 +0100 (So, 15 Mär 2009) | 7 lines

  Move the previously local import of threading to module level.

  This is cleaner and avoids lockups in obscure cases where a Queue
  is instantiated while the import lock is already held by another thread.

  OKed by Tim Peters.
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