这是一篇安装llama_cpp_python库的文章
快速安装
我使用了ComfyUI的便携版因此有python_embeded\python.exe，在根目录打开PowerShell输入
.\python_embeded\python.exe -m pip install llama-cpp-python
按理说，应该没问题，但是我报错了
Collecting llama-cpp-python>=0.2.0 (from -r ComfyUI/custom_nodes/ComfyUI-JoyCaption/requirements_gguf.txt (line 1))
Using cached llama_cpp_python-0.3.36.tar.gz (76.6 MB)
ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory: 'C:\Users\lbd\AppData\Local\Temp\pip-install-_8i1vopc\llama-cpp-python_16d260b3cb3f489ca8142afe2357be5a\vendor\llama.cpp\tools\ui\src\lib\components\app\chat\ChatAttachments\ChatAttachmentsList\ChatAttachmentsListItem\ChatAttachmentsListItemThumbnailFile.svelte'
原因可能是：在线下载时解压路径过长，Windows 260 字符路径限制导致解压截断、文件丢失
手动安装
直接手动下载 wheel 离线安装
- 打开 https://github.com/abetlen/llama-cpp-python/releases 找到对应 python 版本 + cuda 版本的
.whl文件，比如：llama_cpp_python-0.3.36-py3-none-win_amd64.whl（cu130） 下载放到 ComfyUI 根目录 - Powershell 执行（把文件名替换成你下载的 whl）
.\python_embeded\python.exe -m pip install .\llama_cpp_python-0.3.36-py3-none-win_amd64.whl
离线安装完全不走源码编译，彻底避开长路径问题。
装好 llama-cpp 之后，继续装剩下依赖
.\python_embeded\python.exe -m pip install -r ComfyUI/custom_nodes/ComfyUI-JoyCaption/requirements_gguf.txt --no-deps
--no-deps 跳过 llama-cpp-python，只安装其余依赖包
检查
重新再根目录打开PowerShell输入：
.\python_embeded\python.exe -m pip show llama-cpp-python
.\python_embeded\python.exe -m pip check llama-cpp-python
应该出现如下：
PS F:\ComfyUI_Portable> .\python_embeded\python.exe -m pip show llama-cpp-python
Name: llama_cpp_python
Version: 0.3.36
Summary: Python bindings for the llama.cpp library
Home-page: https://github.com/abetlen/llama-cpp-python
Author:
Author-email: Andrei Betlen <abetlen@gmail.com>
License: MIT
Location: F:\ComfyUI_Portable\python_embeded\Lib\site-packages
Requires: diskcache, jinja2, numpy, typing-extensions
Required-by:
PS F:\ComfyUI_Portable> .\python_embeded\python.exe -m pip check llama-cpp-python
No broken requirements found.
这时再次打开ComfyUI时，cmd的环境检查就不再报错说明llama_cpp_python安装成功并正确识别