Github user nchammas commented on the issue:
https://github.com/apache/spark/pull/14579
Thanks @MLnick for taking this on and for breaking down what you've found
so far.
I took a look through
[`contextlib`](https://docs.python.org/3/library/contextlib.html) for
inspiration, and I wonder if the source code for
[`closing()`](https://docs.python.org/3/library/contextlib.html#contextlib.closing)
offers a template we can follow that would let `persist()` return an
RDD/DataFrame instance with the correct magic methods, without having to modify
the class.
Have you taken a look at that?
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