Python クラス図の自動生成について

Windwos10でPythonのクラス図の自動生成をしようと思っています。

調べてみると、

pip install pylint
pyreverse -o png -p Pyreverse pylint/pyreverse

というのが多く出てくるのですが、いくつかわからないことがあります。

まず、

pip install pylint

を試すと、

>pip install pylint
Requirement already satisfied: pylint in c:\users\user\appdata\roaming\python\python38\site-packages (2.5.0)
Requirement already satisfied: colorama; sys_platform == "win32" in c:\users\user\appdata\roaming\python\python38\site-packages (from pylint) (0.4.3)
Requirement already satisfied: astroid<=2.5,>=2.4.0 in c:\users\user\appdata\roaming\python\python38\site-packages (from pylint) (2.4.0)
Requirement already satisfied: toml>=0.7.1 in c:\users\user\appdata\roaming\python\python38\site-packages (from pylint) (0.10.0)
Requirement already satisfied: mccabe<0.7,>=0.6 in c:\users\user\appdata\roaming\python\python38\site-packages (from pylint) (0.6.1)
Requirement already satisfied: isort<5,>=4.2.5 in c:\users\user\appdata\roaming\python\python38\site-packages (from pylint) (4.3.21)
Requirement already satisfied: wrapt~=1.11 in c:\users\user\appdata\roaming\python\python38\site-packages (from astroid<=2.5,>=2.4.0->pylint) (1.12.1)
Requirement already satisfied: lazy-object-proxy==1.4.* in c:\users\user\appdata\roaming\python\python38\site-packages (from astroid<=2.5,>=2.4.0->pylint) (1.4.3)
Requirement already satisfied: six~=1.12 in c:\users\user\appdata\roaming\python\python38\site-packages (from astroid<=2.5,>=2.4.0->pylint) (1.14.0)
Could not build wheels for pylint, since package 'wheel' is not installed.
Could not build wheels for colorama, since package 'wheel' is not installed.
Could not build wheels for astroid, since package 'wheel' is not installed.
Could not build wheels for toml, since package 'wheel' is not installed.
Could not build wheels for mccabe, since package 'wheel' is not installed.
Could not build wheels for isort, since package 'wheel' is not installed.
Could not build wheels for wrapt, since package 'wheel' is not installed.
Could not build wheels for lazy-object-proxy, since package 'wheel' is not installed.
Could not build wheels for six, since package 'wheel' is not installed.

と出ますが、後半の「Could not build wheels for 〜」はスルーしてもいいのでしょうか？

次に、pyreverse とありますが、使えません。コマンドとして認識されていないようです。

これは pip install pylint が失敗(?)しているのが原因なのでしょうか？

それとも別の何かをインストールする必要があるのでしょうか？