pypy/module/_io/test/test_bufferedio.py::AppTestBufferedReaderWithThreads::()::test_read1

self = <pypy.interpreter.typedef.W_ObjectObjectUserDictWeakrefable object at 0x0000000143c98020>

    def test_read1(self):
            import _io
            class RecordingFileIO(_io.FileIO):
                def read(self, size=-1):
                    self.nbreads += 1
                    return _io.FileIO.read(self, size)
                def readinto(self, buf):
                    self.nbreads += 1
                    return _io.FileIO.readinto(self, buf)
>           raw = RecordingFileIO(self.tmpfile)
E           (application-level) LookupError: unknown encoding: utf-8

[/Users/matti/build-worker-arm64/own-macos-arm64/build/pypy/module/_io/test/test_bufferedio.py:145]:10: LookupError

builder: own-macos-arm64 build #1363+

test: pypy/module/_io/test/test_bufferedio.py::AppTestBufferedReaderWithThreads::()::test_read1