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Testing with python 3.12 in #1633 revealed an issue with one test that is using
IOBase
. See comment: #1633 (comment)It appears that in python 3.12
IOBase.__init__
no longer accepts accepts the same arguments. This appears to be an undocumented change (I can't seen to find any documentation) and I don't recall this occurring in rc1. The use ofIOBase
in the test can be replaced withFileIO
(which fits the usage better).This change is split from #1633 to make it easier to backport to 2.15.x