无法在PyCharm（Python 3.9/macOS）中安装PyTorch

Question

环境：

• pip版本：20.2.4
• 解释器：Python 3.9.0
• OS:macOS大苏尔
• 其他一切都是最新的

我在终端中尝试了以下命令，但均无效：

• 安装焊炬
• pip3安装火炬
• pip安装火炬torchvision torchaudio

每个命令都会收到不同的错误消息，但这是“pip install torch”的输出：

Collecting torch
  Using cached torch-0.1.2.post2.tar.gz (128 kB)
Requirement already satisfied: pyyaml in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from torch) (5.3.1)
Using legacy 'setup.py install' for torch, since package 'wheel' is not installed.
Installing collected packages: torch
    Running setup.py install for torch: started
    Running setup.py install for torch: finished with status 'error'

DEPRECATION: The -b/--build/--build-dir/--build-directory option is deprecated. pip 20.3 will remove support for this functionality. A possible replacement is use the TMPDIR/TEMP/TMP environment variable, possibly combined with --no-clean. You can find discussion regarding this at https://github.com/pypa/pip/issues/8333.
    ERROR: Command errored out with exit status 1:
     command: /usr/local/bin/python3.9 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py'"'"'; __file__='"'"'/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pip-record-92u0tiue/install-record.txt --single-version-externally-managed --compile --install-headers /Library/Frameworks/Python.framework/Versions/3.9/include/python3.9/torch
         cwd: /private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/
    Complete output (23 lines):
    running install
    running build_deps
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py", line 225, in <module>
        setup(name="torch", version="0.1.2.post2",
      File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/setuptools/__init__.py", line 153, in setup
        return distutils.core.setup(**attrs)
      File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/distutils/core.py", line 148, in setup
        dist.run_commands()
      File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/distutils/dist.py", line 966, in run_commands
        self.run_command(cmd)
      File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/distutils/dist.py", line 985, in run_command
        cmd_obj.run()
      File "/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py", line 99, in run
        self.run_command('build_deps')
      File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/distutils/cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/distutils/dist.py", line 985, in run_command
        cmd_obj.run()
      File "/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py", line 51, in run
        from tools.nnwrap import generate_wrappers as generate_nn_wrappers
    ModuleNotFoundError: No module named 'tools.nnwrap'
    ----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/bin/python3.9 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py'"'"'; __file__='"'"'/private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pycharm-packaging/torch/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/jz/bbl56kxj3tl_wssc22lnxqmc0000gn/T/pip-record-92u0tiue/install-record.txt --single-version-externally-managed --compile --install-headers /Library/Frameworks/Python.framework/Versions/3.9/include/python3.9/torch Check the logs for full command output.

Answer 1

好的，我用conda软件包管理器而不是pip的软件包管理器解决了这个问题。Conda使用python版本3.8.5，而我的pip管理器使用的是版本3.9。我不太确定不兼容的问题是由于pip本身，还是因为它使用的是python版本3.9。下载图形化macOS安装程序后：

conda install pytorch torchvision torchaudio -c pytorch

这将成功安装PyTorch