前提・実現したいこと

Python初心者です。
今通常の（conda環境ではない）Windows PowerShellでpip install physboを試みたところ、
以下のようなエラーが発生しました。この解決法が分かりません。

physboインストール実行環境・必要なパッケージ

Python >= 3.6
numpy
scipy

発生している問題・エラーメッセージ

PS C:\Users\~~~~> pip3 install physbo
Collecting physbo
  Using cached physbo-1.0.1.tar.gz (38 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: scipy in c:\users\~~~~\appdata\roaming\python\python38\site-packages (from physbo) (1.7.3)
Requirement already satisfied: numpy in c:\users\~~~~\appdata\local\programs\python\python38\lib\site-packages (from physbo) (1.21.2)
Building wheels for collected packages: physbo
  Building wheel for physbo (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Building wheel for physbo (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [21 lines of output]
      running bdist_wheel
      running build
      running build_py
      running build_ext
      cythoning physbo/misc/_src/traceAB.pyx to physbo/misc/_src\traceAB.c
      cythoning physbo/misc/_src/cholupdate.pyx to physbo/misc/_src\cholupdate.c
      cythoning physbo/misc/_src/diagAB.pyx to physbo/misc/_src\diagAB.c
      cythoning physbo/gp/cov/_src/enhance_gauss.pyx to physbo/gp/cov/_src\enhance_gauss.c
      cythoning physbo/misc/_src/logsumexp.pyx to physbo/misc/_src\logsumexp.c
      building 'physbo.misc._src.traceAB' extension
      C:\Users\~~~~\AppData\Local\Temp\pip-build-env-l_b9s_0l\overlay\Lib\site-packages\Cython\Compiler\Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\~~~~\AppData\Local\Temp\pip-install-wsci3lkz\physbo_d4fe4b21d8394690818e5c7a9be8c2ea\physbo\misc\_src\traceAB.pyx
        tree = Parsing.p_module(s, pxd, full_module_name)
      C:\Users\~~~~\AppData\Local\Temp\pip-build-env-l_b9s_0l\overlay\Lib\site-packages\Cython\Compiler\Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\~~~~\AppData\Local\Temp\pip-install-wsci3lkz\physbo_d4fe4b21d8394690818e5c7a9be8c2ea\physbo\misc\_src\cholupdate.pyx
        tree = Parsing.p_module(s, pxd, full_module_name)
      C:\Users\~~~~\AppData\Local\Temp\pip-build-env-l_b9s_0l\overlay\Lib\site-packages\Cython\Compiler\Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\~~~~\AppData\Local\Temp\pip-install-wsci3lkz\physbo_d4fe4b21d8394690818e5c7a9be8c2ea\physbo\misc\_src\diagAB.pyx
        tree = Parsing.p_module(s, pxd, full_module_name)
      C:\Users\~~~~\AppData\Local\Temp\pip-build-env-l_b9s_0l\overlay\Lib\site-packages\Cython\Compiler\Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\~~~~\AppData\Local\Temp\pip-install-wsci3lkz\physbo_d4fe4b21d8394690818e5c7a9be8c2ea\physbo\gp\cov\_src\enhance_gauss.pyx
        tree = Parsing.p_module(s, pxd, full_module_name)
      C:\Users\~~~~\AppData\Local\Temp\pip-build-env-l_b9s_0l\overlay\Lib\site-packages\Cython\Compiler\Main.py:369: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\~~~~\AppData\Local\Temp\pip-install-wsci3lkz\physbo_d4fe4b21d8394690818e5c7a9be8c2ea\physbo\misc\_src\logsumexp.pyx
        tree = Parsing.p_module(s, pxd, full_module_name)
      error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for physbo
Failed to build physbo
ERROR: Could not build wheels for physbo, which is required to install pyproject.toml-based projects

試したこと

エラー文後半の
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
は「Microsoft Visual C++ 14.0 or greater is required.」が出た場合の対処方法
に従い、対処しましたが、その後再度pip install physboを実行しても上記と同じエラー文が表示されました。
なのでほかの所に問題があるのかと考えていますが、アドバイスを頂ければ幸いです。

補足情報（ツールのバージョンなど）

Windows10
Python 3.8.0
pip 22.0.2

ppaul

2022/01/31 13:21

cl.exeのパスを環境変数に追加したあと、新しいPowerShellを起動して、そこからpip3 install physboを実行しましたか？

PHYSBO

2022/01/31 13:49

はい。システム変数にパスを追加後、再起動し、pip3 install physboを実行しました。以下はパスが通ったことの確認です。 ```PS C:\Users\~~~~> cl Microsoft(R) C/C++ Optimizing Compiler Version 19.29.30139 for x86 Copyright (C) Microsoft Corporation. All rights reserved. 使い方: cl [ オプション... ] ファイル名... [ /link リンクオプション... ] ```

ppaul

2022/01/31 14:41

試しにインストールしてみたところ、特にエラーとかを出さずにインストールできてしまいました。 C++は使っていません。 >python -V Python 3.7.11 pip install physbo Collecting physbo Downloading physbo-1.0.1.tar.gz (38 kB) Installing build dependencies ... done Getting requirements to build wheel ... done Preparing metadata (pyproject.toml) ... done Collecting numpy Using cached numpy-1.21.5-cp37-cp37m-win_amd64.whl (14.0 MB) Collecting scipy Downloading scipy-1.7.3-cp37-cp37m-win_amd64.whl (34.1 MB) ---------------------------------------- 34.1/34.1 MB 40.9 MB/s eta 0:00:00 Building wheels for collected packages: physbo Building wheel for physbo (pyproject.toml) ... done Created wheel for physbo: filename=physbo-1.0.1-cp37-cp37m-win_amd64.whl size=141314 sha256=17288458a99ed30e6a687abf439f237ee51926cfd0d42c3a89fe7c5198170552 Stored in directory: c:\users\shinp\appdata\local\pip\cache\wheels\e3\1c\09\6a40470c5f2705129a491a6e91b7514152b580313ff9698cb8 Successfully built physbo Installing collected packages: numpy, scipy, physbo Successfully installed numpy-1.21.5 physbo-1.0.1 scipy-1.7.3 エラーが再現しないので、これ以上はわかりません。一度、Pythonから再インストールしてやり直してみるぐらいしか方法を思いつけませんね。

PHYSBO

2022/01/31 15:11 編集

ありがとうございます。