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Download link: https://www.python.org/downloads/
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Check global Python 3.9.7 installed version
py --version
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Install
virtualenv
globally:py -m pip install virtualenv
py -m venv .\.venv
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Windows:
.\.venv\Scripts\activate
Verify Python 3.9.7 version: python --version
pip install -r requirements.txt
Dependencies control
pip freeze > requirements.txt
jupyter lab