ValueError: `py_limited_api=’cp39’` not supported. `Py_LIMITED_API` is currently incompatible with `Py_GIL_DISABLED`. See https://github.com/python/cpython/issues/111506.

用户在构建 xFormers 时,使用了一个 free-threaded(无 GIL)的 Python 解释器(如 Python 3.14t),并执行 python3 setup.py bdist_wheel 命令触发构建。问题发生在 setuptools 处理 py_limited_api="cp
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