tree 4bfd2f68d5447789815e4b1d5d2b2f5657429f77
parent 54319287c9b3df17c0f6ce15b14619a9814ae292
author R. David Murray <rdmurray@bitdance.com> 1265847917 +0000
committer R. David Murray <rdmurray@bitdance.com> 1265847917 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/release31-maint%4078140

Merged revisions 78139 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r78139 | r.david.murray | 2010-02-10 19:15:05 -0500 (Wed, 10 Feb 2010) | 15 lines

  Merged revisions 78137 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r78137 | r.david.murray | 2010-02-10 17:42:04 -0500 (Wed, 10 Feb 2010) | 8 lines

    Issue 7835:  Shelve's __del__ method calls its close method, and its
    close method refers to an identifier in the global module namespace.
    This means that when __del__ is called during interpreter shutdown (if,
    for example, the calling program still has a pointer to the shelf),
    sometimes that global identifier would wind up being None, causing
    mysterious 'ignored' exceptions.  This patch checks for the possible None
    value first before using the global, thus avoiding the error messages.
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