在配置SCSegamba的环境时出现报错，很多用了mamba的模型如果也报了错，应该都可以用这个方法来解决。
conda create -n SCSegamba python=3.10 -y conda activate SCSegamba pip install torch==1.13.1+cu116 torchvision==0.14.1+cu116 -f https://download.pytorch.org/whl/torch_stable.html pip install -U openmim mim install mmcv-full pip install mamba-ssm==1.2.0 pip install timm lmdb mmengine numpy
执行到安装mamba-ssm时，首先报了下面这种错，报错上说No module named 'torch'，可是我之前明明已经装好了torch。
Looking in indexes: https://mirrors.aliyun.com/pypi/simple Collecting mamba-ssm==1.2.0Downloading https://mirrors.aliyun.com/pypi/packages/b5/65/f648f2ac2e783858810f802856037e9600425673a48326273c68631b9b4c/mamba_ssm-1.2.0.tar.gz (34 kB)Installing build dependencies ... doneGetting requirements to build wheel ... errorerror: subprocess-exited-with-error× Getting requirements to build wheel did not run successfully.│ exit code: 1╰─> [19 lines of output]/tmp/pip-build-env-d0i5jc3p/overlay/lib/python3.10/site-packages/setuptools/_vendor/wheel/bdist_wheel.py:4: FutureWarning: The 'wheel' package is no longer the canonical location of the 'bdist_wheel' command, and will be removed in a future release. Please update to setuptools v70.1 or later which contains an integrated version of this command.warn(Traceback (most recent call last):File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>main()File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in mainjson_out["return_val"] = hook(**hook_input["kwargs"])File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 143, in get_requires_for_build_wheelreturn hook(config_settings)File "/tmp/pip-build-env-d0i5jc3p/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 333, in get_requires_for_build_wheelreturn self._get_build_requires(config_settings, requirements=[])File "/tmp/pip-build-env-d0i5jc3p/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 301, in _get_build_requiresself.run_setup()File "/tmp/pip-build-env-d0i5jc3p/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 520, in run_setupsuper().run_setup(setup_script=setup_script)File "/tmp/pip-build-env-d0i5jc3p/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 317, in run_setupexec(code, locals())File "<string>", line 19, in <module>ModuleNotFoundError: No module named 'torch'[end of output]note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed to build 'mamba-ssm' when getting requirements to build wheel
经过调查发现，其实这里有一个很奇怪的机制，pip 构建 mamba-ssm 时会临时起一个 /tmp/pip-build-env-... 的干净环境去跑 setup.py/pyproject，那个临时环境里没有 torch，所以炸了。
目前还不明白是哪里导致发生这么奇怪的机制的。
在安装时关闭 build isolation，执行下面的命令，就可以正常安装了。
pip install mamba-ssm==1.2.0 --no-build-isolation
另外安装mamba-ssm时有可能还会报下面这样的奇怪的错，这个错又说No module named 'pkg_resources'，更新了setuptools后重新安装也不起作用，最后发现是需要重新安装指定setuptools的版本后，才能解决报错，很怪。。。。
我指定的版本是setuptools==79.0.1
Looking in indexes: https://mirrors.aliyun.com/pypi/simple Collecting mamba-ssm==1.2.0Using cached https://mirrors.aliyun.com/pypi/packages/b5/65/f648f2ac2e783858810f802856037e9600425673a48326273c68631b9b4c/mamba_ssm-1.2.0.tar.gz (34 kB) Preparing metadata (pyproject.toml) ... errorerror: subprocess-exited-with-error× Preparing metadata (pyproject.toml) did not run successfully.│ exit code: 1╰─> [19 lines of output]/hy-tmp/SCSegamba/lib/python3.10/site-packages/wheel/bdist_wheel.py:4: FutureWarning: The 'wheel' package is no longer the canonical location of the 'bdist_wheel' command, and will be removed in a future release. Please update to setuptools v70.1 or later which contains an integrated version of this command.warn(Traceback (most recent call last):File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>main()File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in mainjson_out["return_val"] = hook(**hook_input["kwargs"])File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 175, in prepare_metadata_for_build_wheelreturn hook(metadata_directory, config_settings)File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/setuptools/build_meta.py", line 380, in prepare_metadata_for_build_wheelself.run_setup()File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/setuptools/build_meta.py", line 520, in run_setupsuper().run_setup(setup_script=setup_script)File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/setuptools/build_meta.py", line 317, in run_setupexec(code, locals())File "<string>", line 20, in <module>File "/hy-tmp/SCSegamba/lib/python3.10/site-packages/torch/utils/cpp_extension.py", line 25, in <module>from pkg_resources import packaging # type: ignore[attr-defined]ModuleNotFoundError: No module named 'pkg_resources'[end of output]note: This error originates from a subprocess, and is likely not a problem with pip. error: metadata-generation-failed× Encountered error while generating package metadata. ╰─> mamba-ssmnote: This is an issue with the package mentioned above, not pip. hint: See above for details.