Blocked revisions 81247 via svnmerge

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  r81247 | victor.stinner | 2010-05-17 02:14:53 +0200 (lun., 17 mai 2010) | 9 lines

  test_os: cleanup test_internal_execvpe() and os._execvpe() mockup

   * Replace os.defpath instead of os.get_exec_path() to test also
     os.get_exec_path()
   * Use contextlib.contextmanager, move the mockup outside the class, and
     the mockup returns directly the call list object
   * Use two different contexts for the two tests
   * Use more revelant values and names
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