Merged revisions 71628 via svnmerge from

Merged revisions 71628 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r71628 | benjamin.peterson | 2009-04-15 16:34:27 -0500 (Wed, 15 Apr 2009) | 11 lines

  Merged revisions 71627 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r71627 | benjamin.peterson | 2009-04-15 16:26:36 -0500 (Wed, 15 Apr 2009) | 4 lines

    call __float__ on str subclasses #5759

    tests by R. David Murray
  ........
................