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Python 虚拟环境迁移

Virtualenv

有网环境

source env/bin/activate
pip freeze > requirements.txt
pip install -r requirements.txt

无网环境

source venv/bivn/activate 
pip freeze > requirements.txt
# 在开发环境先下载好离线包
pip download -d offline_packages -r requirements.txt
# 在目标环境创建新的virtualenv环境并激活:
python3 -m venv venv
source venv/biv/activate
# 批量安装离线安装包
pip install --no-index --find-links=offline_packages -r requirements.txt