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import io
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a = io.BytesIO(b"foobar")
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try:
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a.seek(-10)
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except Exception as e:
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# CPython throws ValueError, but MicroPython has consistent stream
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# interface, so BytesIO raises the same error as a real file, which
|
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# is OSError(EINVAL).
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print(type(e), e.args[0] > 0)
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