[解決済み】Jupyterコマンド'notebook'の実行に失敗しました。[Errno 'jupyter-notebook' not found] 2

質問

まず、jupyterをコマンドでインストールします。

pip install jupyter
(venv) D:\MLiA>pip install jupyter

Collecting jupyter
  Downloading https://files.pythonhosted.org/packages/83/df/0f5dd132200728a86190397e1ea87cd76244e42d39ec5e88efd25b2abd7e/jupyter-1.0. 0-py2
.py3-none-any.whl
Collecting ipywidgets (from jupyter)
  Downloading https://files.pythonhosted.org/packages/34/3a/5b258ea6d584f5a8527c2295d0ebf7ffb1654e3de38d37697f88bbef6621/ipywidgets- 7.4.0-
py2.py3-none-any.whl (109kB)
    100% |████████████████████████████████| 112kB 728kB/s

次に jupyter notebook が、エラーになります。

(venv) D:\MLiA>jupyter notebook

Error executing Jupyter command 'notebook': [Errno 'jupyter-notebook' not found] 2

解決方法

入る

jupyter-notebook
(venv) D:\MLiA>jupyter-notebook

[I 15:33:17.594 NotebookApp] Writing notebook server cookie secret to C:\Users\AppData\Roaming\jupyter\runtime\notebook_cookie_secre
t
[W 15:33:18.032 NotebookApp] Terminals not available (error was No module named 'winpty.cywinpty')
[I 15:33:18.032 NotebookApp] Serving notebooks from local directory: D:\MLiA
[I 15:33:18.032 NotebookApp] The Jupyter Notebook is running at:
[I 15:33:18.032 NotebookApp] http://localhost:8888/?token=58d6cbb67aba487dc5f952ebdea19a8462f2ba551cd24a21
[I 15:33:18.032 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 15:33:18.063 NotebookApp]

参考 https://stackoverflow.com/questions/42648610/error-when-executing-jupyter-notebook-no-such-file-or-directory