PyPortfolioOpt安装失败求助：编译qdldl时缺失CMake

问题描述 #

尝试安装PyPortfolioOpt时失败，已升级pip但仍报错，核心问题为编译依赖包qdldl时系统未找到CMake工具，安装流程中断。关键错误片段如下：

FileNotFoundError: [Errno 2] No such file or directory: 'cmake'
RuntimeError: CMake must be installed to build qdldl

完整错误输出：

Installing build dependencies ... error
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> [119 lines of output]
Collecting oldest-supported-numpy
Using cached oldest_supported_numpy-2023.12.21-py3-none-any.whl.metadata (9.8 kB)
...（省略中间冗余日志）
Building wheel for qdldl (pyproject.toml): finished with status 'error'
error: subprocess-exited-with-error

× Building wheel for qdldl (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [72 lines of output]
    running bdist_wheel
    running build
    running build_ext
    Traceback (most recent call last):
      File "<string>", line 81, in build_extensions
      File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/subprocess.py", line 466, in check_output
        return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/subprocess.py", line 548, in run
        with Popen(*popenargs, **kwargs) as process:
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/subprocess.py", line 1024, in __init__
        self._execute_child(args, executable, preexec_fn, close_fds,
      File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/subprocess.py", line 1917, in _execute_child
        raise child_exception_type(errno_num, err_msg, err_filename)
    FileNotFoundError: [Errno 2] No such file or directory: 'cmake'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      ...（省略中间栈追踪信息）
      File "<string>", line 83, in build_extensions
    RuntimeError: CMake must be installed to build qdldl
    [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for qdldl

Failed to build qdldl
ERROR: Could not build wheels for qdldl, which is required to install pyproject.toml-based projects
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.

解决步骤 #

• 安装CMake工具：根据操作系统选择对应方式
  • macOS：使用Homebrew安装

    brew install cmake
    

  • Linux（Debian/Ubuntu）：使用apt安装

    sudo apt update && sudo apt install cmake
    

  • Windows：下载CMake安装包完成安装后，将CMake的bin目录添加到系统环境变量PATH中
• 验证CMake安装：在终端/命令行执行以下命令，确认输出版本信息

  cmake --version
  

• 重新安装PyPortfolioOpt：执行安装命令

  pip install pyportfolioopt
  

内容的提问来源于stack exchange，提问作者rand_coder123