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colander v0.9.1 Release Notes

Release Date: 2010-12-02 // over 13 years ago
    • When colander.null was unpickled, the reference created during unpickling was not a reference to the singleton but rather a new instance of the colander._null class. This was unintentional, because lots of code checks for if x is colander.null, which will fail across pickling and unpickling. Now the reference created when colander.null is pickled is unpickled as the singleton itself.