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Bug description:
In 3.13 it was possible to copy a Union containing any object:
>>> copy.copy(typing.Union[b"x", b"y"])typing.Union[b'x', b'y']But in main this fails:
>>> copy.copy(typing.Union[b"x", b"y"])Traceback (most recent call last): File "<python-input-2>", line 1, in <module> copy.copy(typing.Union[b"x", b"y"]) ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/jelle/py/cpython/Lib/copy.py", line 100, in copy return _reconstruct(x, None, *rv) File "/Users/jelle/py/cpython/Lib/copy.py", line 234, in _reconstruct y = func(*args)TypeError: unsupported operand type(s) for |: 'bytes' and 'bytes'>>>This doesn't affect any types supported by the type system (all of which support|), but may affect users who put non-standard objects inside a Union.
CPython versions tested on:
CPython main branch
Operating systems tested on:
macOS
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