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@@ -702,8 +702,8 @@ state metadata. This can then be used to create e.g. progress bars.
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Creating pickleable exceptions
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-A little known Python fact is that exceptions must behave a certain
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-way to support being pickled.
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+A rarely known Python fact is that exceptions must conform to some
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+simple rules to support being serialized by the pickle module.
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Tasks that raise exceptions that are not pickleable will not work
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properly when Pickle is used as the serializer.
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