Author pitrou
Recipients pitrou
Date 2009-10-11.17:29:18
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Message-id <1255282166.4.0.13882602695.issue7105@psf.upfronthosting.co.za>
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Content
As mentioned in issue7060, weak dict iterators are easily broken by
cyclic garbage collection changing the size of the underlying dict storage:

  File "/home/rdmurray/python/py3k/Lib/weakref.py", line 121, in items
    for wr in self.data.values():
RuntimeError: dictionary changed size during iteration

One possible solution is to delay all removals until all iterators are
done. Here is a context manager-based solution.
History
Date User Action Args
2009-10-11 17:29:26pitrousetrecipients: + pitrou
2009-10-11 17:29:26pitrousetmessageid: <1255282166.4.0.13882602695.issue7105@psf.upfronthosting.co.za>
2009-10-11 17:29:21pitroulinkissue7105 messages
2009-10-11 17:29:20pitroucreate