Sage Attention in ComfyUI

aniculescu · November 6, 2025, 10:36pm

Seems to be an issue with Sage Attention so I recommend getting help with that team

Can't build wheels - No module named 'torch' .venv Comfy UI- Windows 10

opened 08:57PM - 20 Mar 25 UTC

**Windows 10, python 3.12.9, torch 2.6 + CUDA 12.6** I followed instructions o…n multiple reddit posts about installing but python fails. If someone can send over compiled wheel or site-packages I would appreciate. I go to .venv > "activate" > cd SageAttention > pip install -e . Getting requirements to build editable ... error error: subprocess-exited-with-error **ACTUAL ERROR:** × Getting requirements to build editable did not run successfully. │ exit code: 1 ╰─> [23 lines of output] \.venv\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 389, in <module> main() \.venv\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 373, in main json_out["return_val"] = hook(**hook_input["kwargs"]) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ \.venv\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 157, in get_requires_for_build_editable return hook(config_settings) ^^^^^^^^^^^^^^^^^^^^^ \Lib\site-packages\setuptools\build_meta.py", line 483, in get_requires_for_build_editable return self.get_requires_for_build_wheel(config_settings) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ \Lib\site-packages\setuptools\build_meta.py", line 334, in get_requires_for_build_wheel return self._get_build_requires(config_settings, requirements=[]) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ \Lib\site-packages\setuptools\build_meta.py", line 304, in _get_build_requires self.run_setup() \Lib\site-packages\setuptools\build_meta.py", line 522, in run_setup super().run_setup(setup_script=setup_script) \Lib\site-packages\setuptools\build_meta.py", line 320, in run_setup exec(code, locals()) File "<string>", line 24, in <module> ModuleNotFoundError: No module named 'torch' [end of output] **ERROR:** \python.exe: can't find '__main__' module in \\Comfy\\SageAttention'

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Sage Attention in ComfyUI

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