forward-patch from release21-maint branch:
Make dumbdbm merely "dumb", rather than "terminally broken". Without this patch, it's almost impossible to use dumbdbm _without_ causing horrible datalossage. With this patch, dumbdbm passes my own horrible torture test, as well as the roundup test suite. dumbdbm really could do with a smidgin of a rewrite or two, but that's not suitable for the release21-maint branch.
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@ -143,9 +143,15 @@ class _Database:
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return len(self._index)
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def close(self):
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self._commit()
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self._index = None
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self._datfile = self._dirfile = self._bakfile = None
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def __del__(self):
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if self._index is not None:
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self._commit()
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def open(file, flag=None, mode=0666):
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# flag, mode arguments are currently ignored
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