为什么导入 torch for PyTorch stable(1.5) 会在 macOS 上出现错误？

Question

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/torch/__init__.py", line 136, in <module>
    from torch._C import *
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/torch/_C.cpython-38-darwin.so, 2): Library not loaded: @rpath/libc++.1.dylib
  Referenced from: /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/torch/_C.cpython-38-darwin.so
  Reason: image not found

Answer 1

cp /usr/lib/libc++.1.dylib /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.7/site-packages/torch/lib/

将 libc++.1.dylib 复制到 LibraryFrameworksPython.frameworkVersions3.8libpython3.7site-packagestorch 的 lib 文件夹中。

这样一来，问题就解决了