pip 工具正在成为 Ruby gems 等价物的标准.与 distribute 一样，pip 使用 PyPI 包存储库(默认情况下)用于解析和下载依赖项.pip 可以从列出项目依赖项的文件(按照惯例称为 requirements.txt)安装依赖项:

The pip tool is becoming the standard in equivalent of Ruby's gems. Like distribute, pip uses the PyPI package repository (by default) for resolving and downloading dependencies. pip can install dependencies from a file listing project dependencies (called requirements.txt by convention):

pip install -r requirements.txt

您也可以使用 pip 冻结" Python 路径上的当前包:

You can "freeze" the current packages on the Python path using pip as well:

pip freeze > requirements.txt

与 virtualenv 包结合使用时，您可以使用项目所需的依赖项可靠地创建项目 Python 环境.

When used in combination with the virtualenv package, you can reliably create project Python environments with a project's required dependencies.