Navigate to the directory of a Python project you want to run in virtual environment:
cd path/to/target/projectDefine virtual environment:
python3 -m venv venvActivate it:
. venv/bin/activateUpdate pip:
pip3 install -U pipInstall setuptools:
pip3 install -U setuptoolshttps://python-guide-cn.readthedocs.io/en/latest/dev/virtualenvs.html