玩转一下Python
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bingoohuang commented
bingoohuang commented
pipenv集成了pip，virtualenv两者的功能，且完善了两者的一些缺陷。
pipenv 是 Pipfile 主要倡导者、requests 作者 Kenneth Reitz 写的一个命令行工具，主要包含了Pipfile、pip、click、requests和virtualenv，能够有效管理Python多个环境，各种第三方包及模块。
- 用virtualenv管理requirements.txt文件可能会有问题，Pipenv使用Pipfile和Pipfile.lock，后者存放将包的依赖关系，查看依赖关系是十分方便。
- 各个地方使用了哈希校验，无论安装还是卸载包都十分安全，且会自动公开安全漏洞。
- 通过加载.env文件简化开发工作流程。
- 支持Python2 和 Python3，在各个平台的命令都是一样的。
🕙[2020-09-14 11:19:49.761] ❯ brew install pipenv
Updating Homebrew...
Warning: pipenv 2020.8.13 is already installed and up-to-date
To reinstall 2020.8.13, run `brew reinstall pipenv
A thoroughly biased feature table
| Name | Pip + venv | Pipenv | Poetry | pyenv | pythonloc | Conda | this |
|---|---|---|---|---|---|---|---|
| Manages dependencies | ✓ | ✓ | ✓ | ✓ | ✓ | ||
| Resolves/locks deps | ✓ | ✓ | ✓ | ✓ | |||
| Manages Python installations | ✓ | ✓ | ✓ | ||||
| Py-environment-agnostic | ✓ | ✓ | ✓ | ||||
| Included with Python | ✓ | ||||||
| Stores deps with project | ✓ | ✓ | ✓ | ||||
| Requires changing session state | ✓ | ✓ | |||||
| Clean build/publish flow | ✓ | ✓ | |||||
| Supports old Python versions | with virtualenv | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Isolated envs for scripts | ✓ | ||||||
| Runs project fns from CLI | ✓ | ✓ | ✓ |