PS D:\git\kotlin-web-site-master> python kotlin-website.py
Traceback (most recent call last):
  File "D:\git\kotlin-web-site-master\kotlin-website.py", line 18, in <module>
    from flask_frozen import Freezer, walk_directory
ModuleNotFoundError: No module named 'flask_frozen'
PS D:\git\kotlin-web-site-master> pip install Frozen-Flask
Collecting Frozen-Flask
  Downloading Frozen_Flask-0.18-py3-none-any.whl (21 kB)
Requirement already satisfied: Flask>=1.1.0 in d:\devtools\python310\lib\site-packages (from Frozen-Flask) (2.0.2)
Requirement already satisfied: itsdangerous>=2.0 in d:\devtools\python310\lib\site-packages (from Flask>=1.1.0->Frozen-Flask) (2.0.1)
Requirement already satisfied: Werkzeug>=2.0 in d:\devtools\python310\lib\site-packages (from Flask>=1.1.0->Frozen-Flask) (2.0.2)
Requirement already satisfied: Jinja2>=3.0 in d:\devtools\python310\lib\site-packages (from Flask>=1.1.0->Frozen-Flask) (3.0.3)
Requirement already satisfied: click>=7.1.2 in d:\devtools\python310\lib\site-packages (from Flask>=1.1.0->Frozen-Flask) (8.0.3)
Requirement already satisfied: colorama in d:\devtools\python310\lib\site-packages (from click>=7.1.2->Flask>=1.1.0->Frozen-Flask) (0.4.4)
Requirement already satisfied: MarkupSafe>=2.0 in d:\devtools\python310\lib\site-packages (from Jinja2>=3.0->Flask>=1.1.0->Frozen-Flask) (2.0.1)
Installing collected packages: Frozen-Flask
Successfully installed Frozen-Flask-0.18