Merged revisions 71465 via svnmerge from

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

........
  r71465 | nick.coghlan | 2009-04-11 23:31:31 +1000 (Sat, 11 Apr 2009) | 1 line

  Issue 5354: Provide a standardised testing mechanism for doing fresh imports of modules, including the ability to block extension modules in order to test the pure Python fallbacks
........