创建Python虚拟环境（pyenv）

git clone git://github.com/pyenv/pyenv.git ~/.pyenv

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init --path)"' >> ~/.bashrc

echo 'if command -v pyenv >/dev/null; then eval "$(pyenv init -)"; fi' >> ~/.bashrc

pyenv install 3.9.9

~/.pyenv/versions/3.9.9/bin/python -m venv venv

source venv/bin/activate
pip install --upgrade pip
pip install -U -r requirements.txt