环境配置
python3 -m venv venv/
source venv/bin/activate
pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com
// https://stackoverflow.com/questions/24764549/upgrade-python-packages-from-requirements-txt-using-pip-command
pip install --upgrade --force-reinstall -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com
// You can also ignore installed package and install the new one :
pip install --ignore-installed -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com